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If we ________ this speed, we will finish the task ahead of time.

Ahold up Bbreak up

Ckeep up Dtake up

 

C

【解析】C 考察动词短语辨析。句义:如果保持这个速度,我们将会提前完成任务。A项举起,拦住;B结束,破碎;C项维持,保持;D拿起,占据,从事于。根据句义说明C正确。

 

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