Many ways have been found______small and simple machine to process large and complicated m
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Many ways have been found______small and simple machine to process large and complicated machine parts.
A.by using
B.to use
C.using
D.used
请帮忙给出正确答案和分析,谢谢!
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正确答案:B
touse…,不定式短语作way的定语,只是因为定语太长,故将谓语前移,使句子避免头重脚轻;byusing表示方式,作状语用;using为动名词,不能作way的定语,way要求不定式作定语;used无论从语法结构上还是从意义上都讲不通。
