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They considered a computer, which was considered a great help in their work. A.

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They considered a computer, which was considered a great help in their work. A.

They considered___ a computer, which was considered___ a great help in their work.

A. to buy;to be          B.buying;being

C. to buy;being         D.buying;to be

 

试题答案

【答案】

 D

【解析】

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