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【题目】There is another _______to this problem which you__________

A. boundary , don’t mention B. reflection , didn’t mention

C. target , hadn’t mentioned D. dimension , haven’t mentioned

【答案】D

【解析】考查名词辨析及时态。句意:这个问题还有另外一个方面(dimension)你没有提到。从定语从句的意思可知是这个方面现在你没有提到,对现在有影响就是你下面要提到,所以本句要用现在完成时。一般过去时对现在没有影响,过去完成时是过去的过去。boundary分界线;范围;边线。reflection反映; 思考;反射;映像。target目标; 目的;对象;靶子。dimension尺寸面积,范围,度,维故选D项。

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