Cctv news(Reporter Wang Jingyuan): When you walk into the Red Mansion located in the compound of Bomi County Committee in Tibet, the first thing you see is a photo wall with photos of more than 200 old people, and there is a line above the photo: Pay tribute to the 18th Army and be grateful for the "old Tibet".

At the beginning of 1950, the central government decided to liberate Tibet. At that time, the 18 th Army, originally scheduled to be stationed in rich southern Sichuan, was urgently ordered to become the main force to carry out this arduous task. Building roads, bridging bridges, counterinsurgency and construction, eighteen officers and soldiers dedicated their youth to the Tibetan Plateau, making great contributions to the liberation and construction of Tibet.

In 2018, bomi county decided to transform the Red Mansion into a red historical memorial hall, and an action to find veterans of the 18th Army and save historical memory began.

(Photo wall in Bomi Red Building, photo by CCTV reporter Wang Jingyuan)

An action to save historical memory

Zhang Qingchong was blocked from the door for the seventh time. It has been more than three months since he came to Chengdu on business this time, and time is limited. He can’t wait any longer.

The next day, originally planning to return to Linzhi, he once again stood outside the home of an old soldier of the 18th Army. He was unwilling and wanted to try his luck at last. Zhang Qingchong lives in the guest house opposite the old man’s house. Every morning before going out, he will knock on the door. "If I still don’t open the door this time, I won’t knock for the ninth time. I can only say that we don’t have this fate."

The eighth time, the door finally opened a crack. As in previous times, the first sound came from the nanny’s bristle, "Are you bored? You knock at the door as soon as I cook in the morning. How many times have I said that he won’t see you? "

Jasmine Zhang chong quarreled with the nanny through a door, when the old man came over and said, "Open the door for him." Jasmine Zhang chong can hear that the old man’s tone is not friendly, but he can’t bear so much. He seems to have won the lottery with excitement. Before the nanny opens the door, he pushes the door open.

The veteran of the 18th Army was a propaganda officer and a war correspondent of the 155th Regiment of the 52nd Division of the 18th Army in Tibet. Born in 1928, he joined the army in 1945 and experienced many battles in southern Hunan, Qamdo, Lhasa and Shannan. The purpose of Zhang Qingchong’s trip is to collect old photos and objects of the old people after they entered Tibet with the army, and bring them back to the Red Mansion Memorial Hall in bomi county, Linzhi, Tibet. If all goes well, they will be exhibited as exhibits in the future.

(Photo by CCTV reporter Wang Jingyuan in the corner of the exhibition hall in the Red Building)

There is a reason for the old man’s resistance to Zhang Qingchong. In 2008, someone took away his old photos in the name of a reporter. At that time, the other party said that he would send the original back after photocopying the photos, but it never appeared again. "After being cheated in 2008, I suddenly realized that I was really old. When I was young, I also worked as an underground party. You know, no one can fool me." Since then, anyone who came for photos has been turned away by him.

At first, the old man was still wary of Zhang Qingchong, but chatting, he suddenly got up and walked into the bedroom. When he returned to the living room, the old man had a bunch of old black and white photos on his hand. "You didn’t know how happy I was at that moment."

Zhang Qingchong gave the old man his ID card and camera, and promised to send the photos back as soon as he finished printing the electronic version downstairs. As a result, he was stopped by the security guard as soon as he got downstairs. A few minutes later, the old man’s son also rushed back from the unit, and he was going to grab the photos in Zhang Qingchong’s hand without saying anything. In a push, the nanny also ran down from upstairs, pointing to Zhang Qingchong and calling him a liar.

Fortunately, the misunderstanding was finally solved. After returning to the hostel, Zhang Qingchong looked at the cars coming and going on the road, recalling those strange eyes a few hours ago, and couldn’t help crying. He buried his head in the pillow, and his tears soaked the sheets. "Why don’t so many people understand what I did?"

It is not easy to win the trust of veterans and their families, which is the most important work of Jasmine Zhang in the past three years.

Bomi Red Mansion refers to the Red Mansion of Zhamu Center County Committee, which was built in 1953 and located in the compound of bomi county government. This red wooden building witnessed the development of Tibet’s revolutionary history, and successively assumed the functions of government office, staff dormitory and war command center. In 2018, bomi county decided to transform the Red Chamber into a red historical memorial hall, and handed over the exhibition work to Zhang Qingchong, a journalism major.

(Photo by Wang Jingyuan, a CCTV reporter from Bomi Honglou, surrounded by mountains)

Zhang Qingchong was very interested in history since he was a child. After hearing the news that the Red Chamber was going to be exhibited, he took the initiative to apply for participation with the county leaders. At first, he thought the work was very simple. Until he started to prepare, Zhang Qingchong found that Bomi began to compile local chronicles in 2007, and the historical materials of the revolutionary period were extremely scarce. The latest photo of the Red Chamber was taken in 2004.

"We have traveled all over Linzhi, Changdu and even the archives and libraries of the whole autonomous region. As a result, the information related to Bomi is only one and a half pages of A4 paper." It’s not easy to find the red ruins, either there is no information or there are different opinions. It’s just a battle to defend the wood. At first, 28 versions were fully sorted out, and it’s difficult to prove each other.

Zhang Qingchong is worried that he can’t finish the task assigned by the leader, and he always has the exhibition of the Red Chamber in his heart. "I am worried and anxious, and I don’t know what to do." During that time, no matter how late he got off work every day, he always went around to the county compound to take a look at the Red Chamber. Once he worked overtime until 4 am, and on his way home, he unconsciously went to the Red Chamber. He looked at the Red Chamber in a daze and thought about how to start.

Until later, Zhang Qingchong accidentally saw a message about the descendants of the 18th Army going to Henan to find their roots, which inspired him. On the way home from the Red Chamber that night, it suddenly occurred to him: Why not go to the old soldiers who are still alive to make an oral history?

In this way, an action to save historical memory began.

friendship between generations

Zhang Qingchong, born in 1992, is a native of Xunxian County, Henan Province. After graduating from college in 2016, he went to work in Tibet. In November of the same year, he became a grassroots civil servant in bomi county Guxiang, Linzhi City, Tibet.

The reason why he chose to work in Tibet is not only to escape the heavy work pressure in big cities, but also because of the magnificent natural scenery. Jasmine Zhang Chong planned to work in Tibet for five years, in addition to completing the work assigned by the organization, he also had to travel around Tibet. At that time, Tibet was only the temporary residence of his first job after entering the society. His parents and girlfriends were in their hometown, and Tibet was not in his vision of future life.

"In this picture, the PLA took off its cotton trousers when crossing the glacier. Do you know why?" Zhang Qingchong pointed to a black-and-white photo in the exhibition hall and looked at the opposite audience with great interest. "In fact, when crossing the river for the first time, the PLA wore cotton trousers. When they saw the water rushing on the river, they thought that the water temperature must be above zero. Who knew that when they landed, their trousers became ice trousers and they couldn’t take a step. Therefore, when encountering a glacier again, gay men will take off their cotton trousers and put them on their heads, while lesbians will change their cotton trousers into light clothes, either wading across the river or swimming with wood in their arms. The icy river has left many soldiers with lifelong illnesses, and many female soldiers have since lost the opportunity to be mothers. "

(Jasmine Zhang Chong is explaining the history of the 18 th Army’s entry into Tibet. Photographed by CCTV reporter Wang Jingyuan)

Zhang Qingchong, 29, now knows a lot about Bomi’s history and geography. More than once, after listening to his explanation, someone went to ask him if he was a local of Bomi. Whenever someone praises him for speaking well, he always replies, "Old comrades are the creators of stories, and I’m just a porter. It’s not how well I speak, but the stories of old comrades are touching enough."

But at first, Zhang Qingchong didn’t rush to these stories.

For Zhang Qingchong, the initial search for veterans of the 18 th Army was just a work task. Every time they arrive at the old man’s house, they always pull Jasmine Zhang to tell him the story behind each photo, but Zhang Qingchong doesn’t have the heart to listen. On the surface, he just wants to get the photos to finish the exhibition early. Even later, as soon as he heard that the other party had never worked in Bomi, he gave up the contact interview directly. "What does he have to do with me as an old soldier of the 18th Army? He’s not in Bomi. How can he help us with the exhibition? "

Until the sudden death of an old soldier of the 18th Army, like a stone thrown into a calm lake, some heavy facts that had been deliberately ignored surfaced, and Zhang Qingchong had to rethink the significance of this job.

"I was still listening to his story at noon the day before, and the next day I received a phone call from his daughter saying that his father had passed away." Jasmine Zhang chong began to realize that it was urgent to visit veterans. These meritorious old people who have climbed snow-capped mountains, crossed glaciers and built roads have been left behind at the end of the new era. They are eager to talk. At the last moment of their lives, what they can’t give up is the youth dedicated to the snowy plateau. "I think I used to be vulgar and utilitarian."

Change happens here. Once again, when I came to Chengdu Veterans’ Retirement Center, Zhang Qingchong wanted to have a chat with all the veterans of the 18th Army, regardless of whether they had worked in Bomi before. Even if some revolutionary old people have never been to Tibet, Zhang Qingchong will buy some fruits to see them. Some old people don’t have any old photos, but Zhang Qingchong will still carry the camera in the past. "I don’t have an interview outline, so I will listen to his stories and chat with him." Later, Zhang Qingchong took another two months to revisit the old man who only asked for photos from the other party before.

(Photo courtesy of Zhang Qingchong and veteran Yan Jiaqi)

In the face of the stories of these veterans, Zhang Qingchong didn’t want to hear them at first, then dealt with them, and finally listened with his ears upright. "These old people are like a river. It may be difficult for you to approach them at first, but once you touch that point, the river will ‘ Break the bank ’ At this time, they will tell you crazily, and it is difficult for you not to let him talk. " Every time the old people open their hearts to Zhang Qingchong, he will feel happy from the heart.

Every time he goes on a business trip to visit veterans, Zhang Qingchong will be stimulated by some details. He is moved by the pure Tibetan complex and heavy revolutionary feelings of the older generation. He found that many old comrades who have left Tibet for decades still like to eat Ciba and drink buttered tea. They can speak fluent Tibetan and write standardized Tibetan. There is a portrait of Potala Palace on the wall at home, a Tibetan daily on the desk, and the first channel on TV is Tibet Satellite TV.

Meng Guilin, a descendant of Meng Xianmin, a veteran of the 18th Army, once told Zhang Qingchong that every time there was news related to Bomi in the news broadcast, her father always asked her to record it with her mobile phone, and then she watched it over and over again with reading glasses and a magnifying glass, and paused for a second, unwilling to miss any frame.

Zhang Qingchong felt that he was guarding Tibet and Bomi for his old friends thousands of miles away. "Working and living in the depths of the mountains, the reason why I won’t feel lonely is because I have so many forgotten friends." In this action to save historical memories, Zhang Qingchong visited a total of 212 veterans of the 18 th Army and their descendants. He regards these old people as bosom friends and confidants. "A bosom friend is an appropriate tacit understanding, and a bosom friend is a perfect friend.".

From "Old Tibet" to "Little Tibet"

Among the many friends who have forgotten the new year, Lian Youxiang is the most special one for Zhang Qingchong.

Luoyu area is located in the southeast of Tibet, starting from Chayu in the east, reaching Menyu in the west, reaching the traditional custom line of the Sino-Indian border in the south and the vast area south of great bend in the Yarlung Zangbo River in the north, involving the whole territory of Medog County in Tibet, and its geographical position is extremely important. In the summer of 1952, the China People’s Liberation Army first entered the Luoyu area, and Lian Youxiang was the leader of the PLA working group in Luoyu at that time.

At that time, the People’s Liberation Army didn’t know anything about Luoyu, and didn’t even have an administrative division map. Lian Youxiang led the soldiers to climb the Suila Mountain and walk on the ice slope with the back of a knife. When passing through some sections, the head of the person behind almost touched the heel of the person in front. The higher you climb, the steeper the mountain is, and it is difficult to stand. Climb up and slide down, then climb up and slide down. They stick their bodies on the cliffs, dig at the crevices with their hands, and try to stand on the stone nest with their toes. They are too nervous to say anything, let alone look down, and move slowly like geckos. Many years later, when Lian Youxiang and Zhang Qingchong recalled this scene again, they still had a lingering fear.

Due to various historical reasons, Lian Youxiang’s situation in Tibet was not smooth, but the old man was always optimistic. "The two most meaningful things in my life are that I met my lover and met this old man. Every time I have a hard time at work, just give him a call, and I will go home happily singing and humming at once. Compared with Lian Lao’s tortuous life, the injustice I experienced is nothing at all."

(The descendants of the 18 th Army returned to Bomi Red House. Photo courtesy of the interviewee)

When getting photos is no longer the only purpose, Zhang Qingchong gains more things than interviews. Once Zhang Qingchong went to Chengdu to interview an old soldier, and the other’s daughter offered to charge a fee according to the shooting year of the photo. "This old man was sitting on the rattan chair in the living room, fanning his fan leisurely. At that time, I thought how he was so boring and didn’t help me say a few words." When he was about to leave, he stopped Zhang Qingchong and asked him to leave his contact information. "I’m ‘ Old Tibet ’ , you are ‘ Little Tibet ’ When I miss Bomi, I will ask you to take some photos and videos for me. "

Half a month later, Zhang Qingchong received a WeChat from his father, "Xiao Zhang, my daughter is not at home today". Zhang Qingchong quickly dialed the phone. The old man said that he would donate the photos to Bomi. The two quickly reached a consensus. He remotely instructed the old man to turn on the computer, pack photos and log in to the mailbox. After the photo was successfully sent, the old man specifically told him: "We are working underground, don’t let my daughter know about it." Every time I tell this story, Zhang Qingchong can’t help feeling that two generations have completely different attitudes towards money.

Every time he returns to Bomi after an interview, he always spends a lot of time sorting out the recordings and videos. This job requires people to calm down and do it. For this reason, he almost put off all the parties and devoted himself to these veterans. "When I was in college, I was a student union cadre, and my favorite thing was social entertainment."

Zhang Qingchong can clearly perceive that his life is changing. He finds that there is less and less common language with the people around him. On the contrary, his old friends in the distance always worry him. Entering "Eighteen Armies" in Zhang Qingchong’s WeChat search field, there are more than 20 group chats. When he goes back to the mainland for vacation, he always stays in Chengdu for a few days to have tea and chat with the old people.

(Photo courtesy of Jasmine Zhang Chong and veteran Dai Yixin and his descendants)

In two and a half years, Zhang Qingchong has traveled for more than 400 days, collecting 24 million words of materials, more than 140 physical materials, more than 40 old comrades’ manuscripts and more than 1,800 old photos, basically sorting out the red historical context of bomi county and even Linzhi City.

Although he has devoted all his thoughts to this, time is still not enough. Many times, Zhang Qingchong feels that he is racing against time. "Of the 212 old people we visited, 12 left in 18 years, and increased to more than 30 in 19 years. At the end of 20 years, we counted 71. Have you found that if these figures are connected into a line chart, this line will become steeper and steeper?"

There is a stack of yellowed diaries on display in the Red Chamber, totally 17, which span from 1949 to 1966. The historical context of Bomi area is not clear enough, but it is clearly recorded in the diary. People, time and events are like a local chronicle.

The owner of the diary is an old soldier named Wang Xiaoyu, who used to be the secretary-general of Bomi Sub-committee. When Zhang Qingchong found Wang Xiaoyu, the 99-year-old man was already a terminal cancer patient. On his desk, it was a memoir manuscript that he had just started writing but had no time to finish.

(Photo courtesy of 17 diaries of Wang Xiaoyu’s old man)

After contacting these old people, Zhang Qingchong found that there is actually more than one way to live in life. Sometimes when a person returns to his residence after work, he will dig out the interview video of the old man. Once he watched Yan Jiaqi’s video until 4 am. "In fact, I can recite all these videos. I know the next sentence after they finish the last sentence, but I don’t know why I just like listening to them, as if life has returned to a very quiet state."

During the 130,000-kilometer trip, in three years, Zhang Qingchong went to Lhasa, Qamdo, Linzhi, Chengdu, Zhengzhou, Beijing, Xianyang and other places many times. After interviewing 212 veterans, he found that he didn’t want to leave Tibet.

In July this year, the scheduled five-year trip to Tibet expired, but Zhang Qingchong chose to stay in Bomi and continue the work of visiting veterans. "I originally had only five years of fate with Tibet, but now it may become a lifetime."

　　Peking University Deng Hongkui’s research group recently published a research paper entitled "Efficient and Rapid Preparation of Human Pluripotent Stem Cells by Chemical Reprogramming" in the international academic journal Cell Stem Cells. In this study, a new chemical reprogramming system was established to induce human adult cells into pluripotent stem cells more quickly and efficiently.
　　According to the team members, pluripotent stem cells have the ability of infinite self-renewal and differentiation into all functional cell types of organisms. These magical characteristics make them widely used in cell therapy, drug screening and disease models, and they are the most critical "seed cells" in the field of regenerative medicine. How to induce pluripotent stem cells in vitro has always been a key scientific problem in the field of life science. In 2013, Deng Hongkui’s research group published an original achievement in the journal Science, that is, it can reverse the fate of cells without relying on endogenous substances such as oocytes and transcription factors, and reprogram mouse somatic cells into pluripotent stem cells (CiPS cells), opening up a new path of somatic cell reprogramming. In 2022, Deng Hongkui’s research group made a new breakthrough and successfully realized the induction of human adult cells into pluripotent stem cells (human CiPS cells) by using small chemical molecules.
　　The essence of life is a chemical process, and it is theoretically the most effective way to regulate the fate of cells through small chemical molecules. There are essential differences between chemical reprogramming and traditional reprogramming technology: traditional transgenic reprogramming technology, such as induced pluripotent stem cell technology (iPS technology), drives the cell fate to change directly through the over-expression of endogenous transcription factors, and its induction process is difficult to control; Chemical reprogramming is to use exogenous chemical small molecules to simulate external signal stimulation and drive the cell fate to change in stages. Therefore, this method has strong controllability, and it is expected to achieve precise regulation of cell fate, reverse cell identity and functional state, and make reverse development possible.
　　In this latest research achievement, Deng Hongkui has established a faster, more efficient and more stable reprogramming method of human cytochemistry. The researchers discovered a new combination of small chemical molecules, which greatly accelerated the reprogramming process. The induction period was shortened from 50 days to less than 30 days, and the induction could be completed in 16 days at the shortest. At the same time, the induction efficiency is greatly improved, up to 31%. The new system was tested on somatic cells from 17 individuals with different genetic backgrounds and different ages, and all of them could be induced efficiently, which accelerated the wide application of human CiPS cells in cell therapy, drug screening and disease models.
　　According to the previous report of the research group, the original system went through the stages of epithelioid cells, plastic intermediate cells and XEN-like cells in the process of inducing human CiPS cells, and finally established pluripotent stem cells. However, this study found that the molecular mechanism of the new system is faster and more efficient: the proliferation ability and oxidative phosphorylation metabolic activity of plastic intermediate cells are significantly enhanced, and they no longer go through XEN-like stage, and the pluripotent genes are activated faster and the molecular path is more direct. It is particularly important that traditional iPS reprogramming relies on the process of glycolysis and metabolism, while the most critical stage of chemical reprogramming-the production of plastic intermediate state depends on oxidative phosphorylation, not glycolysis and metabolism. This discovery reveals the importance of specific energy metabolism pathways to the fate transformation process of different cells, and provides a new perspective for understanding the regulation mechanism of cell fate from the perspective of energy metabolism.
　　In addition, the new induction scheme established in this study is not only fast, efficient and stable, but more importantly, it has clear components, and does not depend on serum or feeder cells. These properties better meet the needs of clinical application, laying a foundation for establishing human CiPS cell lines that meet the clinical application standards and making it a key step towards clinical application. Compared with transgenic over-expressed transcription factors, chemical small molecules have the advantages of not integrating genome, reversible action and simple operation, so CiPS technology is safer, simpler and easier to standardize, and has broad clinical application prospects. At present, Deng Hongkui’s research group has efficiently prepared islet cells from human CiPS cells, and verified its safety and effectiveness in treating diabetes in large animal models, highlighting the clinical application value of human CiPS cells as "seed cells" in treating major diseases.
　　

Recently, the list of 52 films with the highest box office in the world in the 44 years since 1977 was released. The number one movie was Avatar in 2009, and the global box office reached an astonishing $2,922,917,914. This was followed by The Avengers: The Final Battle in 2019, with a box office of $2,797,501,328. Both films have grossed more than $2 billion.

Other popular movies on the list include Titanic (1997, global box office: US$ 2,201,647,264), Star Wars: The Force Awakens (2015, global box office: US$ 2,069,521,700) and The Avengers: Infinite War (2018, global box office) In the China market, so far, no film has been selected for this list.

In addition, Avatar: The Way of Water in 2022 and Spider-Man: No Way Out in 2021 also ranked 6th and 7th respectively, with global box office of $2,026,675,670 and $1,916,306,995 respectively.

In this list, the tenth film is The Avengers in 2012, with a global box office of $1,518,815,515; The seventh place was Fast and furious 7 in 2015, with a global box office of $1,515,341,399. Other famous films such as The Lion King (2019, global box office: US$ 1,663,075,401) and Top Gun: maverick (2022, global box office: US$ 1,488,732,821) are also on the list.

The less people know, the better! From the AI ? ? entrepreneurial artifact that media people are using, how cool is it to click on the free experience AI to make money →

　　On December 8, 2017, Fu Cong, head of the China delegation, said at the meeting of States parties to the United Nations Biological Weapons Convention that in October of that year, Wuhan Institute of Virology, Chinese Academy of Sciences held the International Training Course on Biosafety Laboratory Management and Experimental Technology.

　　Don’t underestimate this conference, which is the most important achievement of China virus research in the world. The trainees of this training course organized by Wuhan Virus came from Pakistan, Kazakhstan, Sri Lanka, Egypt, Kenya, Serbia, Hungary and other countries. At that time, the lecture team of the training course came from the P4 laboratory construction and research team of Wuhan Institute of Virology. This laboratory has the highest level of protection in China and even in Asia, except for China, the other one is in Japan. At the end of December last year, at the beginning of the discovery of Covid-19, the relevant samples were directly sent to Wuhan P4 laboratory for testing. Later, relevant departments and institutions took the test results and published a paper entitled "Initial Transmission Dynamics of novel coronavirus-infected Pneumonia in Wuhan, China" in the New England Journal on January 29th. One of the conclusions was that "interpersonal transmission occurred among close contacts in December 2019". Recently, this paper has been questioned. The Ministry of Science and Technology recently issued a notice asking all relevant research project undertakers and their researchers to devote all their research energy to various research tasks, write the paper on the front line of fighting the epidemic, and apply the research results to fighting the epidemic. Before the task of epidemic prevention and control is completed, we should not focus on publishing the paper. In addition to the early discovery of human-to-human transmission in Covid-19, on January 28, the institute just developed an antibody detection test paper for research; At the same time, the Institute and the Institute of Toxicology and Drug Research of the Academy of Military Medical Sciences jointly discovered novel coronavirus (2019-nCoV) at the cellular level.Drugs with good inhibitory effects, such as remidivivir or rendixivir (GS-5734), chloroquine (Sigma-C6628), Ritonavir, etc. In addition, on January 21st, the Science and Technology Department of Hubei Province launched the "2019 New Type Pneumonia Emergency Science and Technology Research Project", and established a new type pneumonia emergency science and technology research expert group, whose leader is Shi Zhengli, a researcher at Wuhan Institute of Virology.

　　In addition, the whole genome sequence of novel coronavirus was determined by Wuhan Institute of Virology on January 2nd, and the virus strain was successfully isolated on January 5th. On January 9th, the virus strain resource has been put into the national virus resource database according to the standard, and has been preserved in a standardized way.

　　Wuhan Institute of Virology was also the first institution to conclude that the virus strain originated from bats. On January 23rd, Shi Zhengli’s team published "The Discovery of a novel coronavirus and Its Possible Origin of Bats" on the pre-printed platform of bioRxiv, and proposed that a new type of pneumonia virus might originate from bats. It was confirmed for the first time that novel coronavirus used the same cells as SARS coronavirus to enter the receptor, and it was found that the sequence consistency between novel coronavirus and a bat coronavirus was as high as 96%. Born in 1956, the current director is a post-80s Wuhan Virus Institute, which has a long history and a high level, and is a department-level unit. In June 1956, shortly after the founding of New China, the famous virologist Academician Gao Shangyin, the famous microbiologist Academician Chen Huagui and Professor Jane Haoran and other scientists of the older generation established Wuhan Institute of Virology, which was one of the national institutes established earlier in China. Wuhan Institute of Virology is one of the first enrollment units with the right to confer degrees since the country resumed graduate enrollment. Up to now, the discipline has trained 429 master students and 174 doctoral students. At present, the discipline has 27 discipline groups with different professional directions, 30 doctoral tutors, 10 master tutors, including 3 Jie Qing and 10 people in the Hundred Talents Program. There are 240 graduate students, including 110 doctoral students. The China Virus Resource and Information Center under the Wuhan Virus Institute has the largest virus repository in Asia, and established the only China Virus Collection in China. The research direction of Wuhan virus is all important human viruses.Such as HIV, HCV, influenza virus, human cytomegalovirus (HCMV), tumor virus KSHV, herpes simplex virus (HSV), etc.) and new viruses of animal origin (such as SARS-CoV, avian influenza virus, arbovirus, etc.). Chen Xinwen, former director of Wuhan Institute of Virology, received his doctorate in virology from Wageningen University in the Netherlands in 2001. He has been engaged in cooperative research in American University of California, Berkley and German University of Duisburg-Essen. Chen Xinwen is also a winner of the Hundred Talents Program of Chinese Academy of Sciences and the National Outstanding Youth Fund. He has won the second prize of national technological invention and the second prize of Hubei Natural Science. He is currently the president of Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences. Chen Xinwen was succeeded by Wang Yanyi, who became the director of Wuhan Virus Institute in October 2018. Wang Yanyi is a female "post-80 s" scientific research cadre, and previously served as the deputy director of Wuhan Virus Research Institute.

　　According to public information, Wang Yanyi was born in 1981. She graduated from Peking University College of Life Sciences in 2004, and then went to the University of Colorado to get a master’s degree. When she came to Wuhan University, she served as a lecturer and associate professor in the School of Life Sciences of Wuhan University for six years, during which she received her doctorate.

　　In March 2012, Wang Yanyi was transferred to Wuhan Institute of Virology, Chinese Academy of Sciences. He served as the head of molecular immunology discipline and deputy director of the Center for Viral Pathology. In December 2014, he served as assistant to the director, and one year later he was promoted to deputy director of Wuhan Institute of Virology. Wang Yanyi’s main research direction is the interaction mechanism between virus and host. He has presided over or undertaken many projects such as National Natural Science Foundation and 973 Project. Published nearly 30 SCI papers in internationally renowned journals. In 2013, Wang Yanyi was selected as the first batch of top-notch young talents in the national "Ten Thousand Talents Program". Shi Zhengli, a "batwoman", was able to quickly find the virus or its source from bats after searching for the virus host for 13 years in COVID-19, which has a lot to do with one person and her team. This person is Shi Zhengli.

　　Shi Zhengli’s team is working in the field.

　　Shi Zhengli, known as "batwoman", has been engaged in the etiology research of new viruses for a long time, especially in the research on the traceability of SARS virus, and her leading team confirmed that bats are the natural hosts of SARS coronavirus. Since the outbreak of SARS virus 18 years ago, a large number of coronaviruses (SARSr-CoV) associated with severe acute respiratory syndrome have been found in bats, their natural hosts. At the beginning of this outbreak in Wuhan, Shi Zhengli’s team obtained full-length genome sequences from five patients, which are almost identical to each other and have a similarity of 79.5% with the genome sequence of SARS-CoV. Later, researchers further found that novel coronavirus (nCoV-2019) had 96% homology with Bat Coronavirus at the whole genome level. By analyzing the paired protein sequences of seven conserved nonstructural proteins, it was shown that novel coronavirus belonged to SARSr-CoV species. The team led by Shi Zhengli not only confirmed that bats are the natural hosts of SARS coronavirus, but also found serological evidence that bats in China are infected with Nipah virus and Ebola virus, and found and identified a large number of genetically diverse new viruses such as adenovirus and circovirus in bats, further confirming that bats are the natural hosts of many viruses. Before and after the Spring Festival in 2003, SARS spread from Guangdong Province to other provinces in China at an alarming rate, and there were many "super communicators" who spread SARS to dozens or even dozens of people. In March 2003,The University of Hong Kong and the US Centers for Disease Control and Prevention have successively isolated a virus from SARS patients. Under the electron microscope, this virus looks like a crown of medieval European emperors. According to the morphological characteristics and genetic information, scientists believe that this new coronavirus is the pathogen of SARS, and it is a coronavirus that has never been found in humans. Later, researchers in China began to look for the source of the virus. They found that the earliest 11 cases had a history of contact with wild animals in Otawa. Following this clue, scientists first aimed at the Guangdong wildlife market, and soon separated and detected the virus exactly the same as SARS virus in the civets in the market. After this discovery was announced, Guangdong Province issued a ban in early 2004: completely killing civet cats in the wild animal market, banning wildlife trade and closing the wild animal market. However, Shi Zhengli and her team are not satisfied. For this new virus, we must find the source, that is, the "natural host"-an animal that carries a virus for a long time, but it does not get sick itself and can live in peace with the virus. Because the Hendra virus that broke out in Australia in the 1990s and the Nipah virus that broke out in Malaysia were later confirmed to be fruit bats, Shi Zhengli and her team focused their attention on bats. In 2004, the team collected fruit bats from Guangdong and Guangxi for the first time, and tested the genetic material in the laboratory. As a result, nothing was found after 8 months. Later,Antibodies to SARS virus were found in three species of bats in Guangxi and Hubei, and they followed suit, and coronavirus was detected in these three species of bats. In 2005, Shi Zhengli and her team published their research results in the journal Science. However, after careful comparison, it is found that there are still some differences between bat SARS-like coronavirus and SARS virus found in 2005, especially the most critical gene that determines the infectivity and pathogenicity of the virus is not the same. Later, they continued to search all over the country, whether in the south or the north, in the middle or in the west, whenever they heard that there were bats, they would go all over 28 provinces and cities in China, just like looking for a needle in a haystack. In 2011, Shi Zhengli and her team isolated and detected a highly homologous SARS-like coronavirus in a cave in Yunnan. Apart from the close evolutionary relationship, they are also very similar in function.

　　They monitored the cave for five years, sampling twice a year, and found more than ten different types of SARS-like coronavirus. Although no virus exactly the same as SARS virus was found, a natural gene pool of SARS virus was found.

　　After 13 years of tracking, they finally determined the bat origin of SARS virus. In January 2019, the project "Research on Bats Carrying Important Viruses in China" led by Shi Zhengli won the second prize of the National Natural Science Award in 2018. On January 29th, American Academy of Microbiology announced the list of Fellows of American Academy of Microbiology in 2019, and Shi Zhengli was elected. The American Academy of Microbiology is one of the subsidiaries of the American Society for Microbiology, the world’s largest and oldest member organization in the field of life sciences, and it is in the leading position in the international microbiology discipline. Among the scientists elected as Fellows, there are many Nobel Prize, Lasker Prize and national medal of science award Prize winners. Mysterious P4 Laboratory At the beginning of 2003, the spread of SARS in China virtually gave birth to the construction of the first P4 laboratory in China, and this important task fell on the shoulders of Wuhan virus, which is in an important transition period. In February 2003, Hu Zhihong, then director of Wuhan Institute of Virology, Chinese Academy of Sciences, suddenly received a phone call from Chen Zhu, then vice president of Chinese Academy of Sciences, asking if he could undertake the task of building P4 laboratory in Wuhan. Hu Zhihong immediately said that he would go all out. Hu Zhihong immediately called the party and government leading bodies of the Institute to discuss, and decided that Yuan Zhiming, then deputy director, was responsible for the preparation of P4 laboratory. At the same time, he ordered Yuan Zhiming, a visiting scholar at the University of Illinois in the United States, to end his trip and immediately return to China to prepare for P4 laboratory construction. On March 25th, 2003, Wuhan Institute of Virology submitted to the Biological Bureau of Chinese Academy of Sciences.Report on "Request for Instructions on Establishing P3 and P4 Laboratories". P4 laboratory is based on the degree of harm and protection required to deal with pathogenic microorganisms in the world. In the world, biosafety laboratories are usually divided into four levels, with the first level of protection being the lowest and the fourth level of protection being the highest. In the highest-level biosafety laboratory, in addition to other general protective measures, positive pressure protective clothing, airtight doors, chemical showers, sewage treatment systems, air filtration systems, etc. are specially set up to avoid the threat of operated harmful biological factors through protective barriers and management measures. Due to the complexity of construction and maintenance and high technical requirements, China has no experience in building P4 laboratory and maintenance, and needs to seek international cooperation to carry out laboratory construction. From April 5 to 11, 2003, Yuan Zhiming went to France with Chen Zhu to seek cooperation in P4 laboratory construction and research on emerging diseases. After consultation with Ms. Haignere, French Minister of Research and New Technology, she reached a preliminary cooperation intention. Chen Zhu and Yuan Zhiming saw P4 laboratory for the first time in Lyon, and its glass shell was colorful at night. After visiting it, they found that the internal structure and technology were particularly complicated. The P4 laboratory in Lyon was designed and built by French company Meria and RTV. During the visit, Wang Shaoqi, then Minister Counselor of the Chinese Embassy in France, discussed the Sino-French cooperation with Chen Zhu and Yuan Zhiming. That night, Wang Shaoqi asked Yuan Zhiming to stay in the confidential room of the embassy, wrote an internal report of nearly ten thousand words and sent it back to China.The contents are as follows: The research of infectious diseases in France has been highly valued by the government, and the first level-4 biosafety laboratory in Europe has been established in Lyon, and the Pasteur Institute is also the earliest unit in the world to carry out SARS research. To carry out the research on emerging diseases, P3 and P4 laboratories with high biosafety level should be established first, so as to prevent infectious pathogens from being released into the environment, and at the same time provide researchers with high biosafety guarantee. Some P3 laboratories have been established in China to carry out some research on SARS pathogens, but the research on some more virulent infectious pathogens and possible new disease pathogens must be carried out in P4 laboratory with the highest security level. Therefore, the establishment of P4 laboratory will become an important technical platform and guarantee for China to carry out research in related fields. On January 28th, 2004, when president Hu Jintao visited France, he witnessed the signing of the Memorandum of Understanding on Sino-French Cooperation on Preventing and Combating Emerging Infectious Diseases between the Government of People’s Republic of China (PRC) and the Government of the French Republic: the establishment of a Sino-French emerging infectious disease group composed of representatives and experts from the competent French government departments; Support the development of Wuhan Institute of Virology, Chinese Academy of Sciences, acquire the necessary equipment and technology for establishing a high-level biosafety laboratory, and provide relevant support and training. On November 26th, 2007, when French President Nicolas Sarkozy visited China, China and France signed a supplementary statement on the cooperation agreement on the prevention and control of emerging infectious diseases, emphasizing "to ensure that all necessary measures are taken as soon as possible to implement all planned projects including Wuhan P4 laboratory".. In 2008, France delivered a laboratory drawing, and in 2009, Zhongyuan Design Institute of China provided the drawings designed by China. In the design process, we refer to the main concepts of Lyon laboratory design to ensure the highest degree of safety. On January 9, 2012, the key equipment of the core laboratory-airtight door and life support system arrived in Jiangxia Zhengdian Park and passed the acceptance test. On January 31st, 2015, Wuhan P4 Laboratory held a completion unveiling ceremony, which marked the completion of hardware construction and installation of major facilities and equipment.

　　The core area of Wuhan P4 laboratory is about 300 square meters, and it adopts the structure of "box in box". The interior of the laboratory is a negative pressure space, that is, the pressure inside is less than that outside, and air can only enter but not exit. The inside of this "big box" is divided into different areas by heavy metal doors, including cell laboratory, animal laboratory and animal autopsy room.

　　Academician Gao Fu, director of China Center for Disease Control and Prevention, said: The official operation of Wuhan P4 Laboratory marks that China’s research on pathogenic microorganisms and immunology has entered the international advanced ranks, showing that China’s national security is another "frigate", which is comparable to the strategic deployment of China’s "two bombs and one satellite" in China. previous chapter

　　The Truth Behind the "Squeezing Water" of Provincial Economic Data

This article first appeared on WeChat WeChat official account: See Finance. The content of the article belongs to the author’s personal opinion and does not represent Hexun.com’s position. Investors should operate accordingly, at their own risk.

　　Xinhua News Agency, Jinan, August 7th, New Media Specialist (Reporter Wang Yang, Zhang Yujie) Recently, dog abuse and killing incidents have been exposed in Weihai, Dongguan, Lianyungang and other places one after another. The related videos and pictures are cruel and savage, and both online and offline have aroused public dissatisfaction and heated discussion. Some netizens think that it is inappropriate to kill animals and be sentenced to damage property or undermine public security. Some netizens said that it is worrying that some people have no scruples about treating small animals.

　　Frequent incidents of dog cruelty have aroused public anger, and what kind of punishment should be faced with such animal cruelty has aroused social discussion. The reporter interviewed relevant experts, lawyers and animal protection agencies on issues of concern to netizens.

　　According to media reports, a citizen of Weihai, Shandong Province recently towed a pet dog with an off-road vehicle on the highway, causing some people to contain it. Related videos were circulated on the Internet.

　　Coincidentally. According to netizens, a man living in Dongguan adopted more than 50 stray dogs and killed them for fun. According to a recent posting by a netizen in Lianyungang, a local woman was bitten by a big dog in a residential area when she came home with her boyfriend. Later, the woman’s boyfriend met the biting big dog again in the residential area and injured the dog. After that, the dog owner reported to the police that the dog had been killed.

　　Lawyer Yang Shaogang, director of Shanghai Shaogang Law Firm, said that many recent incidents of dog abuse have aroused the indignation of the masses, but such cases are not individual cases, and some animal cruelty is more serious and cruel. For example: burning cats with fire, stepping on cats with high heels, beating dogs with sticks, and entertaining some mentally distorted people with various strange methods of cruelty to animals, but no cases of punishment have been seen. Because the law does not stipulate the punishment for cruelty to animals.

　　Lawyer Yang Shaogang said that the incident in Shandong is slightly different from the general dog abuse. Because the owner of the car paraded through the street in front of the public, the people saw the animals being abused alive and died tragically, which caused compassion, so the onlookers and human flesh search were completely understandable. I think the public security organs can completely detain them for more than five days and less than ten days in accordance with Article 23 of the Law on Public Security Administration Punishment, and impose a fine of less than 500 yuan.

　　The staff of China Small Animal Protection Association told the reporter that at present, China only has the Wildlife Protection Law of People’s Republic of China (PRC), but there is no relevant legislation for the protection of pets and domestic animals, which is not conducive to the protection of non-wild animals.

　　The staff said that the recent incidents of cruelty to animals have had a very bad impact, which touched the bottom line of the people. However, without the protection of relevant laws, these abusers would only suffer moral condemnation at most, which is not enough to deter these abusers. They may also abuse animals again, hoping to introduce a comprehensive animal protection law as soon as possible.

　　According to legal experts, there is no law against "cruelty to animals" in China except People’s Republic of China (PRC) Wildlife Protection Law, Regulations on the Management of Laboratory Animals, Regulations on the Management of Medical Laboratory Animals, Regulations on the Protection of Aquatic Wildlife and Regulations on the Protection of Terrestrial Animals. Article 29 of the Regulations on the Administration of Medical Laboratory Animals states: "The staff engaged in laboratory animals must take good care of them and shall not tease or abuse them." Article 31 stipulates: "According to the seriousness of the case, warning, improvement within a time limit or administrative sanctions shall be given respectively." This is for experimental animals, and there are no prohibitive regulations for general animals.

　　Lawyers such as Yang Shaogang told reporters that since 2005, there have been many incidents of animal cruelty in China, and some people have called for legislation to protect animals. However, there are two different opinions, and the opposition to legislation has prevailed. Therefore, there has been no legislation on animal protection in China for a long time, but the legislation on wild animals has not only been enacted by the National People’s Congress, but also by many places. Its legislative purpose is not to consider animals as human friends, but as human resources, in order to prevent the loss or plunder of resources.

　　According to incomplete statistics, more than 100 countries and regions have enacted the Law on the Prohibition of Cruelty to Animals, and the maximum penalty for cruelty to animals is imprisonment for less than five years. Britain, the United States, Japan, Italy, Germany, Canada and other countries have formulated the Animal Protection Law, the Animal Welfare Law and the Standards for Medical Laboratory Animals, which have made strict regulations on the protection of animals. Even if pets are lost, their owners will be punished, which shows that they attach importance to animal protection.

　　Experts believe that the publication and publicity of animal cruelty, calling for everyone’s attention and condemnation, is itself the progress of animal protection awareness.

　　Cao Han ‘ai, an expert in animal law at Griffith University in Australia, told the reporter, "Five or six years ago, I assisted legal scholars in drafting the Animal Protection Law of People’s Republic of China (PRC) (expert’s suggestion draft). At that time, the law against animal cruelty was too advanced in China and was not suitable for the national conditions at that time. But in recent years alone, China has made great progress, which is the progress of China society. "

　　She introduced that at present, more and more animal activists and ordinary people in China, especially young people, have contributed their money to help all kinds of animals voluntarily, to condemn and stop abuses, to report illegal trafficking and hunting of wildlife under state protection, and so on. "All these show that people’s awareness of animal protection far exceeds the current legal provisions."

CCTV News:On March 28th (Sunday) at 15:00, the State Council Joint Prevention and Control Mechanism held a press conference to introduce the vaccination situation in COVID-19.

According to the international epidemic situation and the experience of infectious disease prevention and control, accelerating vaccination is a powerful means of epidemic prevention and control at present. China is accelerating the vaccination work in Covid-19 safely and orderly. The National Health and Wellness Commission has sent working groups to some provinces to support and guide the local vaccination of Covid-19 vaccine.

At the press conference, Wu Liangyou, deputy director of the CDC of the National Health and Wellness Commission, Wang Huaqing, chief expert of immunization planning of China CDC, Zhang Yuntao, vice president of biology of China of Sinopharm Group, and Mr. Gao Qiang, general manager of Beijing Kexing Zhongwei Biotechnology Company answered questions on "accelerating Covid-19 vaccination".

　　This report is compiled in accordance with Article 50 of the Regulations of People’s Republic of China (PRC) Municipality on the Openness of Government Information (hereinafter referred to as the Regulations on the Openness of Government Information).

　　I. General situation

　　In 2022, under the leadership of the Municipal Party Committee and Municipal Government, the Municipal Bureau of Statistics conscientiously implemented the Regulations on the Openness of Government Information and the Key Points for the Openness of Government Affairs in Beijing in 2022, strengthened policy interpretation, actively responded to social concerns, and made every effort to do a good job in the openness of government information.

　　(A) to strengthen the interpretation of data release, do a good job of government information disclosure.

　　Strengthen organization and leadership, hold a special meeting of the director’s office to study the relevant work of government affairs disclosure, formulate the main points of annual government affairs disclosure, and revise the "Regulations on the Administration of Government Information and Government Affairs Disclosure of Beijing Municipal Bureau of Statistics". Complete the task of releasing government statistical data information on time, and do a good job in data release and interpretation. According to the plan, the main economic data of the whole city will be released, and information such as statistical systems and statistical standards will be actively disclosed in the open column of government affairs website, so as to provide timely and accurate information support for all sectors of society and continuously improve the effectiveness of open government affairs services. In 2022, the government website published 830 statistical data tables, 376 interpretation statistical information and 342 government information. Earnestly do a good job in publicizing the management and use of fiscal funds, and publish five intermediary service transaction information on the online intermediary service trading platform in Beijing.

　　(two) according to the application acceptance channels, do a good job of government information disclosure according to the application.

　　First, continue to make it public according to the application. In the government information disclosure guide, add the relevant content of government new media accounts, and update and publish the government information disclosure guide of the Municipal Bureau of Statistics in a timely manner. In 2022, the Municipal Bureau of Statistics handled a total of 34 applications for government information disclosure, all of which were answered according to laws and regulations. In 2022, there were no complaints, reports and administrative lawsuits caused by government information disclosure.

　　The second is to unblock the channels of government information consultation. In 2022, the statistical consultation column of the government website of the Municipal Bureau of Statistics responded to 278 public inquiries, and the foreign comprehensive contact telephone seat answered more than 19,000 calls.

　　(C) to strengthen government information management, do a good job in the construction of government information disclosure platform.

　　The first is to optimize the content of the government information disclosure platform. Adjust the policy document column of government website, add subject classification, issuing authority and other content, and set up the policy document retrieval function. Build intelligent consulting service, add "intelligent question and answer" module, and improve the answering efficiency of a network. Add the function of downloading progress data on government websites, further standardize the construction of government websites and improve the convenience of using statistical data.

　　The second is to strengthen publicity and interaction. The website of the Municipal Bureau of Statistics launched the "Statistical Publicity Column of Beijing’s Economic and Social Development Achievements since the 18th National Congress of the Communist Party of China", planned to publicize the Party’s 20 major themes, and produced a series of programs on "Counting the Ten Years’ High-quality Development of Beijing", which showed the fruitful achievements of Beijing’s pioneering construction and innovative development. With the theme of "Measuring Beijing’s Color with the Future", the 2022 Beijing Government Statistics Open Day was held, which was broadcast live simultaneously through the platforms of "Beijing Statistics" Tik Tok and "Beijing Daily", attracting 158,000 people to watch online, and the number of online topics initiated by the event has reached 4.5 million.

　　(four) to strengthen supervision and guarantee, do a good job in government information disclosure education and training.

　　Strictly implement the provisions of the government information disclosure system, improve the audit mechanism of government information release, supervise and inspect the government information disclosure work, and make it as open as possible. Organize lectures for all staff on the Regulations on the Openness of Government Information to teach the whole process of information disclosure, such as registration, review, handling, reply and filing, so as to enhance public awareness, strengthen the legal thinking of all staff and improve the level of government information disclosure.

　　Second, the initiative to disclose government information

　　Iii. Receiving and handling applications for government information disclosure

　　Four, the government information disclosure of administrative reconsideration and administrative litigation.

　　V. Main Problems and Improvements

　　With the development of economy and society, the demand of the public for statistical matters and data is increasing, and the number of inquiries about statistical official website is increasing. Therefore, the Municipal Bureau of Statistics actively uses various platforms such as statistical government website, "Two Micro-shakes", "Counting Beijing" program, and comprehensive foreign telephone number to release information in time and answer public inquiries, so that the public can obtain statistical data and information in time through different channels and ways to better meet the public’s demand for statistical data.

　　Vi. Other matters that need to be reported

　　The number and total amount of charge notices issued by the Municipal Bureau of Statistics and the total amount actually collected are all 0.

　　The website of the Municipal Bureau of Statistics is http://tjj.beijing.gov.cn/,. For more government information, please visit.

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Xingrui’s front face design is fashionable and dynamic, and the air intake grille adopts a large-size straight waterfall design, giving people a sense of stability. The overall style is simple and modern, and the lines are smooth. With the sharp headlights and chrome-plated decoration, the whole car shows a unique charm.

The body size of Xingrui is 4785*1869*1469mm and the wheelbase is 2800mm, which provides spacious and comfortable seating space for passengers in the car. The side lines of the car are smooth and dynamic, and with the front and rear track of 1618mm, the car maintains good stability and handling during driving. Tyre size 215/55 R17 adopts fashionable rim design, which not only enhances the aesthetic appearance of the vehicle, but also provides excellent driving performance.

Geely Xingrui’s interior design is simple and full of science and technology. The center console is equipped with a 14.6-inch oversized central control screen, which provides drivers with rich multimedia entertainment and navigation functions. The car is equipped with a leather steering wheel with excellent hand feel, which supports manual adjustment up and down and back and forth, so that the driver can adjust the best grip position according to his own needs. In addition, Xingrui’s seat is made of imitation leather, the main driver’s seat has the functions of front and rear adjustment, backrest adjustment and height adjustment, while the co-pilot’s seat has the functions of front and rear adjustment and backrest adjustment, which brings a comfortable riding experience to drivers and passengers. There are also a number of USB and Type-C interfaces in the car, which is convenient for passengers to charge electronic devices such as mobile phones.

Xingrui is equipped with a 1.5t L4 engine with 181 horsepower, with a maximum power of 133kW and a maximum torque of 290N·m, which is matched with a 7-speed wet dual-clutch gearbox, providing excellent driving performance and fuel economy.

The owner of car home said that he prefers the more calm and atmospheric appearance style of Xingrui to those cars that are too sporty. Xingrui’s steady body has left a deep impression on people, and it is really full of gas. At the same time, from the side, the rising waistline and the slightly upturned tail shape also give the car enough sense of movement. In addition, the LOGO of the 2025 model is obviously more refined.

The car is also equipped with advanced GPS navigation system and voice control system. It can guide the driver to the destination accurately, and the voice control system can recognize and execute various commands, which greatly improves the convenience and safety of driving. This configuration fully meets the needs of modern consumers and also highlights the future trend. Generally speaking, the cockpit design of the new car is not only luxurious and noble, but also has advanced technology and practicality, which is undoubtedly the ideal choice for modern drivers. A 12-inch central control screen is even more eye-catching, integrating a wealth of functions, including navigation, music playback and a variety of practical applications. These facilities ensure that the driver can easily perform various operations during the driving process, whether it is navigation or adjusting the settings in the car, only simple gestures or voice commands are needed.

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The exterior design of BMW i4 shows its unique charm as a high-performance electric car. Its front face adopts the iconic double kidney grille design, but different from the traditional fuel vehicle, it adopts a closed design, which further highlights its identity as an electric vehicle. On both sides of the grille are sharp LED headlights, which blend with the lines of the front face to create a dynamic visual effect. The side lines of the car body are smooth, and the waistline extends from the front of the car to the rear of the car, showing a dynamic posture of sprinting forward. The design of the rear part is simple without losing the sense of movement. The LED taillights adopt a unique "L" shape design, which echoes the headlights and enhances the recognition of the whole vehicle. On the whole, BMW i4 has incorporated many innovative design concepts while retaining classic design elements, which makes it stand out among many electric vehicles.

The body size of BMW i4 is 4785*1852*1455mm, the wheelbase is 2856mm, the front tread is 1601mm and the rear tread is 1630mm. The side lines of the car body are smooth, and the dynamic design is adopted, which shows a strong sporty atmosphere. With 245/45 R18 front tires and 255/45 R18 rear tires, and the unique rim style, the visual impact and driving stability of the vehicle are further improved.

The interior design of BMW i4 is both modern and luxurious. The center console adopts a 14.9-inch large central control screen, which integrates multimedia system, navigation, telephone and air conditioning control functions, and supports voice recognition control system, making it easy to operate. The steering wheel is made of leather, which can be manually adjusted up and down and back and forth to provide a good grip. The front seats are made of imitation leather, genuine leather or leather /Alcantara mixed material, with heating function and various adjustment options for a comfortable driving experience. In addition, the car is also equipped with mobile phone wireless charging function and multiple USB/Type-C interfaces to meet daily use needs.

The engine of BMW i4 has the maximum power of 210kW and the maximum torque of 400N·m, which provides strong power performance for the vehicle.

The owner of car home said that although the 3, 5 and X3 configuration parameters of the I series were almost the same, he chose to spend more than 100,000 yuan on the imported BMW i4 in pursuit of individuality and face value. He thinks that the design of big nostril shows the unique temperament of i4. Every time he drives it out, people guess that its value is around 600,000, which makes him very proud.