2. 自考
  3. A、detect nearby objects B、determine the depth of the ocean water C、decide how fast you drive D、in need of radar E、map the ocean

A、detect nearby objects B、determine the depth of the ocean water C、decide how fast you drive D、in need of radar E、map the ocean

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问题 A、detect nearby objects
B、determine the depth of the ocean water
C、decide how fast you drive
D、in need of radar
E、map the ocean floor
F、observe water flow
Police use radar on highways to________．
选项
答案C
解析 从第五段可以看出，雷达在交通车速限制方面可以协助警察判断驾驶者的车速是否正常。
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