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Iftheoperation________carefullyprepared,itwouldnothavebeensuccessful.

更新时间:2024-11-02 09:20:01
A、wasnot
B、hasnotbeen
C、hadnotbeen
D、werenot
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纠错
正确答案:

C

答案解析:

语法题:虚拟语气。

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