Which form other than oral speech would be the most commonly be the most commonly used among blind people? 

Câu hỏi :

Which form other than oral speech would be the most commonly be the most commonly used among blind people? 

A Signal flags 

B Picture signs 

C Body language 

D Braille 

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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