The prevailing wind is the wind direction most often observed during a given time period. Wind speed is the rate at which the ai

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问题 The prevailing wind is the wind direction most often observed during a given time period. Wind speed is the rate at which the air moves past a stationary object.

选项 A、motionless
B、massive
C、flexible
D、noticeable

答案A

解析 本题中,stationary的意思是“固定的”。A项的“motionless不动的”符合题意,如:The cat sat motionless.(这只猫蹲着不动。)其他三项“massive厚重的;flexible灵活的;noticeable显而易见的”都不正确。
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