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【題目】China’s high-speed railways _________ from 9,000 to 25,000 kilometers in the past few years.

A. are growing B. have grown C. will grow D. had grown

【答案】B

【解析】考查時態(tài)。句意:在過去的幾年里,中國的高速鐵路已經從9,000公里增長到25,000公里。該句時間狀語為in the past few years。中國高速鐵路的增長是從過去一直到現在幾年里的情況,故該句應用現在完成時態(tài)。B選項正確。

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