Protocol was______enabled him to make difficult decisions without ever looking b

游客2023-10-27 48

问题 Protocol was______enabled him to make difficult decisions without ever looking back.

选项 A、who
B、what
C、which
D、that

答案 B

解析表语从句题。本句为主系表结构，表语从句中缺乏引导词，且从句中缺少主语，what可以引导表语从句，并同时在句中作主语，因此应选B项。A项中who可以引导表语从句，但指人，而本题中指物，故排除；which一般用于引导定语从句、主语从句和宾语从句，在引导表语从句时，不能直接充当主语，故排除；that可以引导不缺少句子成分的表语从句，而此句中表语从句缺少主语，故that不符合此处语法，可排除。

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Protocol was______enabled him to make difficult decisions without ever looking b

difficult讲座中提到“Alsoyoushouldpayattentiontothedifficultpartofthepassag

Apartfromaninteresting-lookingcarveddagger,theboxwasfullofcrockery,m

Itisnecessarythathe_______theassignmentwithoutdelay.A、handinB、handsin

Itisnecessarythathe______theassignmentwithoutdelay.A、handinB、handsin

______difficultiesshouldbetakenintoaccount.A、SometheseB、AllsuchC、These

You’dbetterlookatthedifficulty______.A、theotherwayB、bytheotherwayC、

Iamsurprised______theexamisprettydifficult.A、withwhatyouwerethinking

Idon’tthink______possibletomasteraforeignlanguagewithoutmuchmemorywo

He______heronhernewdresswithoutevenlookingatit.A、recommendedB、clappe

Thesecurityguardhaddifficultyin______thefansfromrushingontothestag

[originaltext]Howdoyourisetothetopinbusiness?Whatpersonalqualiti

Scientistshavedevelopedanewcancerdrug.Sofar,theyhavetesteditonlyon

YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____

Pricesdeterminehow【S1】______aretobeused.Theyarealsothemeansbyw

若f（-x）=f（x），且在（0，+∞）内f′（x）＞0，f″（x）＜0，则f（

B

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