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全部科目 > 水路交通运输技能考试 > 海船船员考试 > 船舶管理(驾驶专业) > 航海英语 > 航海仪器 > GPS、DF及LC的使用

单项选择题

Radar is not only to obtain（），but also to measure their distance away from you.

A.brightness of objects
B.color of targets
C.shape of targets
D.bearing of objects

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