2011年职称英语考试综合类B级真题
What is jt that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety-continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In. the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.
31. People buy cell phones for the following reasons EXCEPT that
A. they're popular.
B. they're cheap.
C. they're useful.
D. they're convenient.
32. The word "detected" in paragraph 3 could be best replaced by
A. cured.
B, removed.
C. discovered.
D. caused.
33. The salesman retired young because
A. he disliked using mobile phones.
B. he couldn't remember simple tasks.
C. he was tired of talking on his mobile phone.
D. his employer's doctor persuaded him to.
34. On the safety issue of mobile phones, the manufacturing companies
A. deny the existence of mobile phone radiation.
B. develop new technology to reduce mobile phone radiation