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【题目】Everyone can make great progress______he works hard.
A.unless
B.as long as
C.when
D.while

【答案】B
【解析】考查连词辨析。句意:只要努力,每个人都能取得进步。. unless “除非”; as long as“只要”;when“当…..时候”;while"当...…时候,然而,却"。根据句意可知选B。

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