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        1. The maths problem is so difficult that none of them can          .

          A.work out itB.work it outC.find out itD.find it out

          B

          解析試題分析:句意:這個(gè)數(shù)學(xué)問(wèn)題太難了以至于他們中沒(méi)有一個(gè)人能夠解出來(lái)。work out意為“解決出”;而find out意為“發(fā)現(xiàn)、找出”;這兩個(gè)短語(yǔ)都屬于動(dòng)詞+副詞構(gòu)成的短語(yǔ),后面跟代詞時(shí)需要將代詞置于中間,所以A和B結(jié)構(gòu)錯(cuò)誤;故選B。
          考點(diǎn):考查動(dòng)詞短語(yǔ)。

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