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  3. Could your smartphone prevent a car from hitting you? General Motors and other researchers think that’s a possibility【C1】_______

Could your smartphone prevent a car from hitting you? General Motors and other researchers think that’s a possibility【C1】_______

admin2023-01-04  26
问题     Could your smartphone prevent a car from hitting you? General Motors and other researchers think that’s a possibility【C1】________an emerging wireless standard works its way into the latest smartphones and new cars.
    First seen in 2010, Wi-Fi Direct【C2】________ultrafast device-to-device connections over the same radio waves that smartphones, computers and other electronics currently use to connect to routers and home networks. The【C3】________here is that unlike your application-enabled television, Wi-Fi Direct doesn’t【C4】________the Internet. Rather, it’s【C5】________connect local devices directly to each other【C6】________ as little as a second, and unlike Bluetooth, the connection doesn’t require special pass keys and works at more than double the【C7】________, at about 656 feet apart. GM says future cars could【C8】________pedestrians carrying Wi-Fi Direct smartphones, gather their【C9】________locations and warn the driver through existing active safety systems such as forward collision【C10】________and auto-braking.
    Wi-Fi Direct is one part of GM’s research on vehicle-to-vehicle and vehicle-to-infrastructure【C11】________in which both cars and roadways become【C12】________aware and adaptive to real-time information. More and more automakers, such as BMW and Hyundai, use a subscription-based 3G cell network to connect a car’s information & enter【C13】________searches. A few automakers, such as Ford and
    Audi,【C14】________wireless hotspots that allow full【C15】________to the Internet from any mobile device. By 2015, Ford said it【C16】________80 percent of the vehicles it sells in North America to have a Wi-Fi connection.
    Wi-Fi Direct currently allows file【C17】________between two electronic devices【C18】________having to pair them. If the technology becomes popular and【C19】________it could pull the market away from Bluetooth, the short-range wireless standard for in-car telephone calls and portable audio. With Bluetooth, there isn’t one【C20】________way to connect a device—and many times, as we’ve often found, it still doesn’t work. According to data from the National Highway Traffic Safety Administration, nearly 4,900 pedestrians and cyclists were killed by cars last year, for which data were available.
【C1】
选项 A、whereas
B、as
C、though
D、so
答案B
解析 空格后的all emerging wireless standard(新出现的无线标准)即Wi-Fi Direct。这一技术能“防止汽车撞倒你”。所需连词应体现空格后内容是“有可能”(a possibility)的原因。因此B项as“(表原因)因为”符合逻辑和语义要求。A项whereas和C项though表示的是转折和让步的关系。D项so表明空格后内容是前一内容的结果，语义逻辑不对。
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