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  3. Google is talking to auto makers about how to bring its self-driving-car technology to market, executives said Tuesday. Project

Google is talking to auto makers about how to bring its self-driving-car technology to market, executives said Tuesday. Project

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问题     Google is talking to auto makers about how to bring its self-driving-car technology to market, executives said Tuesday. Project director Chris Urmson said a self-driving car is probably still six years away. But, he added, "We are thinking now about how to bring this car to market."
    There is a lot of "debate internally about how automobiles can use this technology," said Sebastian Thrun, the original leader of Google’s autonomous car project. "There will be a time when a significant number of cars will carry Google technology."
    Google’ s co-founder Sergey Brin—Urmson’ s boss—said roughly a year and a half ago that Google’ s self-driving car was about five years away. Urmson said on Tuesday that he is working on a six-year timeline, based on when his 10-year-old son turns 16 and will be able to drive in California. Bryant Walker Smith, a fellow at Stanford University’s Center for Automotive Research, said it can take up to six years to design and build a new car. Smith said any self-driving car ready in six years would likely be "limited in terms of capability, availability, or geography."
    Google’ s car looks like a regular vehicle but it uses multiple sensors and map data in real time to understand where it is and maneuver through streets and highways without human intervention. The project started in 2009 and became an early part of Google X, the company’s research lab for risky, long-term initiatives. Some on Wall Street are concerned about Google’ s increased focus on these projects; however, they also give the company a chance to expand into huge new markets, such as autos.
    Urmson said Google’s autonomous cars are expensive, but he declined to be specific. That’s partly due to the laser sensor perched on top of the vehicles, which is made by Silicon Valley-based Company Velodyne. About 150 of these laser devices are produced a year, which increases the price of the component, Urmson explained.
    Besides, Arturo Corral, one of Google’s test drivers, said weather is a serious challenge. In heavy rain, the system asks drivers to take back control of the car, Corral said. Google has not tested the vehicles in snow yet. "We still have a long way to go," he added.
According to Paragraph 4, Google’ s car needs______.
选项 A、human intervention in normal days
B、a regular operation system
C、a real-time map
D、only one specific sensor
答案C
解析 根据文章第四段首句“谷歌的无人驾驶汽车看上去与普通汽车并无两样，但它使用了多个传感器和实时地图数据，用来快速定位，从而在无需人为干预的情况下在街道和高速公路上自动行驶”，可判断C项“实时地图”对应文中信息map data in real time，为正确答案。A项“在正常天气中人为干预”是不必要的；B项“一个常规操作系统”在原文中也找不到对应信息，原文只提到说谷歌汽车的外型与常规汽车并无两样；D项“唯一一个特殊的传感器”与文中信息有出入，原文说谷歌汽车需要multiple sensors(多个传感器)。
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