Radar is used to extend the ______ of man’s senses for observing his environment, especially the sense of vision.

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问题 Radar is used to extend the ______ of man’s senses for observing his environment, especially the sense of vision.

选项 A、validity
B、liability
C、capacity
D、intensity

答案D

解析 A.validity有效性,合法性。B.liability责任,负债。C.capacity容量,地位。D.intensity强烈,强度。
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