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【题目】It is hard to review the knowledge we learn in class we take notes

A.IfB.unlessC.whenD.after

【答案】B

【解析】

句意:除非我们记笔记,否则很难复习我们在课堂上学到的知识。

考查连词辨析。if如果,表条件;unless除非,相当于if not,表条件;when当……的时候,表时间;after在……之后,表时间。分析句子,结合选项,推测意思是很难在课堂上复习我们学到的知识除非我们做笔记,是条件状语从句,故选B

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