2017年多晶硅企业排名:高二英语题【经典】3

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By doing the balanced and relaxing exercise, we respond quicker, ______more efficient and productive.
A. and thus becoming B. thus becoming C. therefore we become D. so becoming

B

thus doing 是一个固定结构,在句中作状语,“因此……”,不需加and

therefore是副词,不可连接句子
so加从句,不接doing

选B
现在分词短语做结果状语,前面加上一个副词thus是可以的,但不能加连词.

B 楼上说的是正确的 C是错的

C

c

b