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Experimentsrelatedtothesenseofsmellaremoreeasilythanthoserelatedtoperceptionofcolor.?A.settingthemupB.tosetup?C.setupD.setupthose

题目详情

Experiments related to the sense of smell are more easily     than those related to perception of color.?

A.setting them up  B.to set up ?

C.set up       D.set up those

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答案和解析
C 主句谓语动词是被动语态,easily是副词,修饰set up。(注意,在考试中还有一个经常考的考点是“主语+系动词+不定式”表示被动意义,如The book is easy to read。easy是形容词,所以后面用不定式。