What we know about (A) certain diseases are (B) still not sufficient to prevent them from spreading (C) easily among (D) the population.

Câu hỏi :

What we know about (A) certain diseases are (B) still not sufficient to prevent them from spreading (C) easily among (D) the population.

A What we know about (A) 

B are (B)

C from spreading (C) 

D among (D) 

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

Copyright © 2021 HOCTAP247