Some researchers believe that there is no doubt___ a cure for AIDS will be found.A.whichB.thatC.what

题目简介

Some researchers believe that there is no doubt___ a cure for AIDS will be found.A.whichB.thatC.what

题目详情


Some researchers believe that there is no doubt___ a cure for AIDS will be found.
A.whichB.thatC.whatD.whether
题型:单选题难度:中档来源:不详

答案

B
本题考查同位语从句的引导词。题意为:一些研究人员认为,人们一定会找到治疗艾滋病的方法的。Doubt后接同位语从句时,如用于肯定句中,要用whether引导;如用于否定句中则用that引导。

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