The changes possibly Caused by the cellphones are mainly concerned with ________

Câu hỏi :

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from .

A. the mobility of the mind and the body

B. the smallest units of the brain

C. the arteries of the brain    

D. the resident memory

* Đáp án

* Hướng dẫn giải

Đáp án là B

Ý trong bài: On the other hand, medical studies have shown changes in the brain cells of some

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