试题与答案

关于扰流板,下列说法正确的是:().A.地面扰流板在一定条件下可在空中升起 B.地面

题型:单项选择题

题目:

关于扰流板,下列说法正确的是:().

A.地面扰流板在一定条件下可在空中升起

B.地面扰流板可以卸除升力

C.飞行扰流板不能在地面升起

D.飞行扰流板没有增阻作用

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:阅读理解

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