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【題目】Selecting a mobile phone is no easy task because technology_______ so rapidly.

A. has changed B. is changing

C. will have changed D. will changed

【答案】B

【解析】

試題分析：句意：挑選手機不是容易的活，因為技術變化的如此快。現(xiàn)在進行時態(tài)在此表示了一種“持續(xù)變化”的狀態(tài)，體現(xiàn)了“變化、趨勢、發(fā)展和進展”，故選B。

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