What useful cold knowledge do you know?

Every year, a quarter of the cars on the earth are made in China. The wiring of each car is more than 900 meters long, and it can circle the runway for more than two times. Finidi, an Englishman, was born in North America. At the beginning, its shopping mall was positioned to face many housewives in North America. The company's slogan is: Dare to love. Then sales became a craze. The Jiefang truck on a penny note is actually the creation of the American Navistar K series and an imitation of the Soviet Union. It entered China in 1950s and became a Jiefang truck. Following the 5 million L5, Hongqi will launch an SUV, which will compete with those of Rolls-Royce, Bentley, Lamborghini and Maserati. On August 20 10, the Beijing-Tibet Expressway in the suburbs of Beijing exceeded 12 days, causing serious congestion. The length of this traffic jam is about 100 km, which is the longest congestion at any time. The models that have not been handed down in the history of BMW are: M 1, 8 series. One is a super run, and the other is a flagship. There are no airbags in the car, because the six-point seat belt is enough to tie people up now. The function of bumper is only to reduce the maintenance cost when bumping at low speed.