He has made another discovery, ______ of great importance to science.

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问题 He has made another discovery, ______ of great importance to science.

选项 A、which I think it is
B、of which I think it is
C、which I think is
D、I think which is

答案C

解析 which 引导非限定性定语从句。严格意义上说，插入语并不算句子成分，只是起到补充说明的作用。本句中插入语是I think。

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本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

公共英语（PETS）

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He has made another discovery, ______ of great importance to science.

公共英语二级笔试

公共英语（PETS）

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Readthetextsfromanarticle,forfivequestions,matcheachrule(1to5)tooneofthestatements(AtoG)givenbelow.Mark

Whatarethemanandthewomandoing?

Whena13-year-oldVirginiagirlstartedsneezing,herparentsthoughtitwasmerelyacold.Butwhenthesneezescontinuedfor

Smokerswhowanttokickthehabitmightsoongethelpfromaproductthat’sbeingtestedattheUniversityatBuffaloSchoolof

Amongstthemostpopularbookswrittentodayarethosewhichareusuallyclassifiedassciencefiction.Hundredsoftitlesare【C

Flyingoveradesertareainanairplane,twoscientistslookeddownwithtrainedeyesattreesandbushes.Afteranhour’sfli

Technologyhasbeenanencouragementofhistoricalchange.ItactedassuchaforceinEnglandbeginningintheeighteenthcentu

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