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  3. To reduce car crash rate, many scientists are working hard to Which of the following safety developments is NOT mentioned in th

To reduce car crash rate, many scientists are working hard to Which of the following safety developments is NOT mentioned in th

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问题 To reduce car crash rate, many scientists are working hard to
Which of the following safety developments is NOT mentioned in the passage?
选项 A、Windscreens that can help drivers to improve their vision.
B、Radars that can help drivers to see obstacles in fog.
C、Devices that can help drivers to see through big vehicles.
D、Improvements in seat belts, pedal controls and tyres.
答案A
解析
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