According to the passage, what makes mobile phones potentially harmful is ____________.

Câu hỏi :

Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

A. their power of attraction

B. their raiding power

C. their radiant light

D. their invisible rays

* Đáp án

D

* Hướng dẫn giải

Đáp án D

Kiến thức: Đọc hiểu

Giải thích:

Theo bào đọc, cái làm cho điện thoại di động có thể có hại là ... .

A. lực hút (sức hấp dẫn)

B. năng lượng đột ngột

C. ánh sáng rực rõ

D. những tia không thể nhìn thấy

Dẫn chứng: What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones.

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