There are a number of (A) reason why population (B) is concentrated in temperate regions, but the wide variety and (C) availability of animal and vegetable lif...

Câu hỏi :

There are a number of (A) reason why population (B) is concentrated in temperate regions, but the wide variety and (C) availability of animal and vegetable life may be (D) the most important

A reason 

B is concentrated 

C availability 

D  the most important

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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