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Selecting a mobile phone for personal use is no easy task because technology ________ so rapidly.

[  ]
A.

is changing

B.

has changed

C.

will have changed

D.

will change

答案:A
解析:

由题意“现在选择移动电话不是一件容易的事”引出后面的原因。不是技术已经变化,也不是技术即将变化,而是技术正在变化(is changing现阶段正在变化),所以应该选择A项。


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