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Selecting a mobile phone for personal use is not an easy task because technology ________ so rapidly.

Ais changing Bhas changed

Cwill have changed Dwill change

 

A

【解析】本句的主句一般现在时表达的是目前的情况,而科技发展迅速也是现阶段正存在的一种状态,不是在过去,也不是在将来,因此只能用现在进行时表达。

 

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