The main rotor and tail rotor of a helicopter make the same job as the wings, propellers, and rubber of an airplane.

Câu hỏi :

The main rotor and tail rotor of a helicopter make the same job as the wings, propellers, and rubber of an airplane.

A of

B make

C same

D the wings

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

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