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

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

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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     
Radar helps pilots to________.
选项
答案A
解析 从最后一段可以看出，雷达在飞行方面可以帮助飞行员来判断参照物体的位置以及来往飞机的速度。
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