5. More recently, however, General Motors made a self-driving car in 1958 that adjusted its steering wheel based on the alternating currents given off by a wire placed inside the road. While the vehicle did actually drive itself, it does not qualify as the first autonomous vehicle because it depended on wires placed inside the ground. The world's first autonomous vehicle was made by S. Tsugawa and several of his colleagues at Japan's Tsukuba Mechanical Engineering Laboratory. However, German engineer Ernst Dickinson is regarded as the pioneer of the autonomous car. In 1987, he developed the VaMoRs which was capable of traveling more than 90 kilometers per hour (55 mph) for about 20 kilometers (12 mi). Seven years later, he made the VaMP, which could recognize road signs, know its own position in a lane, detect other vehicles, and even decide when to change lanes. And a year after that, he and his team made another autonomous vehicle which traveled from Germany to Denmark. The vehicle had a maximum speed of 180 kilometers per hour (111 mph) and was controlled by a human for about 5 percent of the journey.
6. By contrast, the strengthening of the Brazilian real helped the surge in coffee and sugar prices as the country is the largest producer of both.
1. The One-China policy constitutes the political foundation of China-US relations which has remained unshaken despite the changing circumstances, nor can this relationship be undermined. With that foundation in place, we believe that there are broad prospects for China-US cooperation.
2. n. 运输，运输系统，运输工具
3. Some smart beds will promise you better sleep and posture, but this one in particular will turn you into a private investigator looking to catch a cheating spouse in the act. Regardless of knowing if it's comfortable, the Smarttress alerts you "whenever someone is using your bed in a questionable way."
4. Andy Murray's US Open victory and Olympic gold medal helped him to become the most searched-for British Olympian.
5. The other two tweets from Obama that made the list were posted when he was leaving the office.
2. ? President Obama declared a "major disaster" in New York and New Jersey. Flooding devastated the coast and more than 2.3 million lost power. The National Guard rescued hundreds from flooding in New Jersey. The governor, Chris Christie, a Republican, said the damage was "unthinkable". He praised the "outstanding" co-operation he had received from Obama.