【单选题】
He suggested transporting the supplies by air. But it is absolutely ___, for it will cost too much.
A. unusual
B. uncertain
C. impractical
D. impressive
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答案
C
解析
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当EIU(发动机接口组件)供电跳开关拔出后,将会()___
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关于WHC计算机的描述正确的是()___
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由于空气动力特性,哪些缝翼不需防冰()___
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在地面,当进行大翼防冰valve的测试时,valve()___
A. 一直打开
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机翼防冰按钮“ON”灯何时亮___
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地面,将机翼防冰按钮置于ON位时会发生什么情况?___
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