题型:阅读理解 题类:常考题 难易度:普通
辽宁省辽阳市2017-2018学年高二下学期英语期末考试试卷
Science is always advancing over time. A self-driving car from the Google may be coming to a street near you. However, you won't be able to buy it now. “We're working to build the world's most experienced driver,” Kraft, director of the project, said. “Everything that we learn in one of our cars gets passed to all of our cars. But you may need to get over the idea of traditional car ownership along the way.”
Google's software has already driven 5 million miles in U.S. cities, including an “early rider” test in Phoenix last April. Since then Google has grown confident enough to remove the “auxiliary wheel”: a human “safety driver”. Powering the vehicle's self-driving functions is a series of cameras, radars and sensors on the car's roof, which detect everything nearby from other vehicles and passers-by to cyclists.
Kraft stressed that Google's cars aren't connected—they don't need a 5G wireless link to go anywhere. “The car has everything it needs to drive on the car itself.” He said, “There are no signals coming from outer space or something telling it to turn right.” The resulting ride may not be too exciting but safe. Kraft added. “We can see three football fields down the road, we would come to a stop before we ran into these crowds.”
Google's system has a major advantage over the semi-autonomous(半自主的)systems of Tesla and Cadillac, both of which need continued human attention. Kraft said Google plans to have service in every major city by 2028 with thousands of cars driving themselves.
China Experience Tours |
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| China Experience Trip Beijing→ Shanghai→Xi'an(8days) Price: Adult $1,517 p/p Under 17$1,230 *Imagine you are a king or queen when entering the great Forbidden City *Have a hike on the world famous great wall * Discover the Terracotta Warriors *Admire Shanghai where east meets west and walk around some local markets |
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| Cultural and Natural Wonders of China Beijing→Xi'an→ Zhangjiajie→ Shanghai(11days) Price: Adult $2, 159 p/p. Under 17$1,360 Wind your way from Beijing to Shanghai in style and discover China's natural wonders-climb up the great Wall, walk around the Forbidden City while listening to the stories of kings, and see the Great“Avatar Mountain”"in Zhangjiajie. |
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