According to the passage, what makes mobile phones potentially harmful is ________.
Đáp án D
Cái gì khiến cho điện thoại luôn tiềm tàng nhiều tác hại:
A. Ánh sáng rada
B. Sức mạnh thu hút
C. Sức mạnh tấn công bất ngờ
D. Tia không thể nhìn thấy
The phrase “split off” in the second paragraph is closest in meaning to____________.
In the first paragraph, the word "elements" is closest in meaning to ________
According to the passage, cellphones are especially popular with young people because ____________.
According to the passage, which of the following statements was true in 1990?
All of the following are advantages of business “Intranets” mentioned in the passage EXCEPT__________
We sometimes think of writing as more real than speech because ______.
According to the author, what is one reason why the Internet is sometimes slow?
The word “advantage” in the last paragraph most closely means ______.