It is a calculating machine which speeds up calculations: it can add, subtract, multiply, and devide with lightning speed and perfect accuracy.

Câu hỏi :

It is a calculating machine which speeds up calculations: it can add, subtract, multiply, and devide with lightning speed and perfect accuracy.

A goodness   

B precision

C wonder

D loveliness

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

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