【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(shí)態(tài)。句意：在過(guò)去的幾年里，中國(guó)的高速鐵路已經(jīng)從9,000公里增長(zhǎng)到25,000公里。該句時(shí)間狀語(yǔ)為in the past few years。中國(guó)高速鐵路的增長(zhǎng)是從過(guò)去一直到現(xiàn)在幾年里的情況，故該句應(yīng)用現(xiàn)在完成時(shí)態(tài)。B選項(xiàng)正確。

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