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 phone...
Cell Phones: Hang Up or Keep Talking Millions of people are using cell phone...
admin
2020-12-24
35
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 fend 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 professional 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 serous 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 issues of the brain and head can be detected with modem 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
On the safety issue of mobile phones, the manufacturing companies()
选项
A.deny the existence of mobile phone radiation.
B.develop new technology to reduce mobile phone radiation.
C.try to prove that mobile phones are not harmful to health.
D.hold that the amount of radiation is too small to worry about.
答案
D
解析
细节题。题干:关于手机的安全问题,生产商____。由关键词safety定位到第四段第四句,意为“手机生产商承认手机有辐射,但是数量极少可以忽略”,很显然,D选项为正确答案。
转载请注明原文地址:https://ti.zuoweng.com/ti/BvMQKKKQ
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...
WhyPeopleUsePseudonyms(假名字)? Youcan’tchoosethenameyouaregivenat...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
随机试题
(90-91题共用题干) 患者,女,40岁,二月前行_7X5固定义齿修复,自诉
关于施工总承包管理模式特点的说法,正确的有()。
如图所示杆件受外力作用,抗拉(压)强度为EA,则杆的总伸长为()。
以基期(比如上一年度)水平为基础,通过调整基期预算项目及其数额,编制相关预算的方
关于社交焦虑,下列说法中正确的包括()。 (A)是一种与人交往的时候,觉得不
(背景材料)学术创新 试结合所学的高等教育学知识,谈谈你对高等教育界存在的学术不端行为的看法,并结合自己的科研学术经历,规划自己的科研职业生涯。
全麻患者清醒前最危险的并发症是A.窒息B.高血压C.苏醒延迟D.躁动E.伤口出血过多
投保人身保险时,投保人要保证被保险人在过去和投保当时健康状况良好,该保证属于()。A:确认保证B:承诺保证C:明示保证D:默示保证
进入21世纪后,商业银行采取了以竞争为导向的“4R”营销组合策略,即()。A:产品B:关联C:反应D:关系E:回报
下列关于教育费附加的减免税规定说法错误的是( )。A.由于减免增值税.消费税而发生退税的,可以同时退还已征收的教育费附加B.对出口产品退还增值税.消费税的,