Work efficiency has increased exponentially each year, thanks to computers and their ability to multitask.

Câu hỏi :

Work efficiency has increased exponentially each year, thanks to computers and their ability to multitask.

A slightly      

B at a very fast rate

C constantly 

D at a very slow rate

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

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