首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
Cell Phones :Hang Up or Keep Talking Millions of people are using cell phon...
Cell Phones :Hang Up or Keep Talking Millions of people are using cell phon...
admin
2020-12-24
39
问题
Cell Phones :Hang Up or Keep Talking
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.
The explosions around the world in mobile phone use make some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the tissues of the brain and head can be detected with modern scanning (扫描)equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss. He couldn’t remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer’s doctor didn't agree.
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. 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.
The word “ detected ” in paragraph 3 could be best replaced by{pz_填空}.
选项
A cured
B removed
C discovered
D caused
答案
C
解析
detect “觉察,发现”,故可用discover来代替。
转载请注明原文地址:https://ti.zuoweng.com/ti/pBpQKKKQ
相关试题推荐
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
随机试题
关于影响口腔黏膜吸收的因素叙述错误的是 A、药物在口腔的吸收一般为被动扩散
调剂时应付盐炙品的是 A.肉桂 B.赤石脂 C.肉豆蔻 D.肉苁蓉 E
主要不良反应是肝毒性和超敏反应的是
2008年7月商品零售价格指数表(上年同月∶100) 2008年7月较上
燃气管道穿越电车轨道和城镇主要干道时宜敷设在套管或地沟内;穿越高速公路的燃气管
面试热点:一线驰援,守护万家灯火 【热点背景】 入汛,受自然灾害影响,我国南部地区一些省份迎来汛期,遭遇严重的洪涝灾情,大量群众的生活受到影响...
《家风是什么》电视系列报道是一档宣传社会主义核心价值观的重点节目,下列关于“家风”与社会主义核心价值观关系的理解,不恰当的是( )。A.好的“家风”是社会主义
药品上市销售前需经指定的药品检验所进行的检验属于A.抽查检验B.注册检验C.指定检验D.复验
债券的修正久期与到期时间、票面利率、付息频率、到期收益率存在()关系。A:票面利率、剩余期限、付息频率相同,但到期收益率不同的债券,到期收益率较低的债券的修正久
独立董事的职权之一是().A:任免董事B:解聘高级管理人员C:制定公司董事的薪酬D:提议召开董事会