单选题___thatmaygenerallyreducetheamount

单选题 ___ that may generally reduce the amount of labor needed on construction sites by 90 percent.A.So clever the construction robotsB.Such construction robots are cleverC.So clever are the construction robotsD.Such clever construction robots are

C解析试题分析：句意：建筑机器人如此聪明，以致于减少了在建筑工地需要的劳动力的90%。这里so …that,such…that 放在句首时，that前的句子用部分倒装；so+形容词或副词+be+主语，故选C。考点：考查的用法。点评：本题难度适中。倒装句是高中阶段必须掌握的语法项目，它分为部分到装和全部倒装，情况复杂，需要考生熟记它们的用法。即学即练：So difficult ____ it to work out the problem that I decided to ask Tom for advice. A. I did find B. did I find C. I have found D. have I found解析：B。so difficult放于句首要引起主句的倒装， 结果状语从句中的“I decided to ask Tom for advice”表明整句话是针对过去的(不强调与现在的关联)， 不宜用现在完成时而应采用一般过去时， 因此本题应选B。

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