Our nervous system has over ten (A) billions (B) nerve cells in a network covering (C) every inch of our skin and (D) organs.

Câu hỏi :

Our nervous system has over ten (A) billions (B) nerve cells in a network covering (C) every inch of our skin and (D) organs.

A billions

B nerve

C every inch

D organs

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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