What percentage of animal life had disappeared from the Gulf of Mexico by the year 2000?

Câu hỏi :

What percentage of animal life had disappeared from the Gulf of Mexico by the year 2000?

A 20 percent

B 50 percent 

C 90 percent 

D 70 percent

* Đáp án

C

* Hướng dẫn giải

Phương pháp giải:

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