Choosing a mobile phone for personal use

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问题选择题

Choosing a mobile phone for personal use is not an easy task because

technology ________ so fast.

A．has changed

B．would change

C．changed

D．is changing

答案

答案：D

选择题

I must return the dictionary to Allen now. I _____ it for three weeks already. [ ]

A. kept

B. will keep

C. have kept

单项选择题

下列有关收入和生产值叙述不正确的是（）。

A、国民生产总值是按国民原则计算的

B、国内生产净值加资本折旧就得到国内生产总值

C、国民收入是国内生产总值与对外要素收入净额之和

D、个人可支配收入加个人所得税是个人收入