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The invention of steam engine greatly sp...

The invention of steam engine greatly sped up the industrial revolution, which _____ a lot to the take-off of the world.

A.led

B.contributed

C.constructed

D.exposed

 

B 【解析】 试题分析:考查单词意思,led是lead的过去式,意思“领导”, contribute意思“捐助”, constructed意思“构建”, exposed意思“揭露”,句子意思“蒸汽机的发明极大的加速工业革命的发展,这些大大的促进了世界的起飞”,所以选B 考点:考查单词意思
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