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题目
题型:不详难度:来源:
______ is known to us is that tobacco contains nicotine and other harmful products, so you should give up smoking.
A.AsB.ItC.WhatD.Which

答案
C
解析

试题分析:考查主语从句:句意:我们都知道的是香烟含有尼古丁和其他有害的物质,所以你应该戒烟。第二个is是谓语,前面的是主语从句,主语从句缺少主语,用what连接主语从句,选C。
核心考点
试题【______ is known to us is that tobacco contains nicotine and other harmful produc】;主要考察你对名词性从句等知识点的理解。[详细]
举一反三
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A.whetherB.what C.thatD.if

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A.whatB.thatC.whichD.why

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A.WhenB.HowC.WhatD.That

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A.WhichB.WhatC.ThatD.Whom

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