Since the 1930's aircraft manufactures have tried to build airplanes with frictionless wings ,shaped so smoothly and perfectly that the air passing over them would not become turbulent .
A wings , shaped so smoothly and perfectly
B wings , wings so smooth and so perfectly shaped
C wings that are shaped so smooth and perfect
D wings ,shaped in such a smooth and perfect manner
E wings, wings having been shaped smoothly and perfectly so
答案为什么 是b啊?
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这是主谓搭配问题,wings可以用smooth来形容,但是不能shaped prefectly,只能是被动
这样解释明白么?
还有解释没太明白.....mm.
还能说详细点不?
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题目无非是从书上,或网上资料来
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