Coral reefs(A) are limestone formations(B) composed of tiny sea organisms(C) and the remains.(D)

Câu hỏi :

Coral reefs(A) are limestone formations(B) composed of tiny sea organisms(C) and the remains.(D)

A Coral reefs

B limestone formations

C tiny sea organisms

D the remains.

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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