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Schools in the east tend to be better equipped, those in the west are relatively

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Schools in the east tend to be better equipped, those in the west are relatively

Schools in the east tend to be better equipped, ________ those in the west are relatively poor.

[]

A.because

B.as

C.when

D.while

试题答案

答案:D

解析:

while表示对比;东部地区的学校设备很好,而西部则比较差.