首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. In many countri
Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. In many countri
admin
2012-06-27
67
问题
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 mat 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______.
选项
A、cured.
B、removed.
C、discovered.
D、caused.
答案
C
解析
词汇题。detect意为“发觉,察觉”,discover意为“发觉,发现”,所以C项为正确选项。
转载请注明原文地址:https://kaotiyun.com/show/m7HO777K
0
在职攻硕英语联考
相关试题推荐
Cultureshockmightbecalledan【C1】______diseaseofpeoplewhohavebeensuddenly【C2】______abroad.Likemostailments,ithasi
Cultureshockmightbecalledan【C1】______diseaseofpeoplewhohavebeensuddenly【C2】______abroad.Likemostailments,ithasi
Cultureshockmightbecalledan【C1】______diseaseofpeoplewhohavebeensuddenly【C2】______abroad.Likemostailments,ithasi
Cultureshockmightbecalledan【C1】______diseaseofpeoplewhohavebeensuddenly【C2】______abroad.Likemostailments,ithasi
WorkisaveryimportantpartoflifeintheUnitedStates.WhentheearlyProtestant【C1】______cametothiscountry,theybrough
AnIndiananthropologist,ChandraThapar,madeastudyofforeigncultures,whichhadcustomssimilarto【C1】______ofhisnative
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromtheearthinthelastfiftyyears?Shouldwebeconcerned
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeling.【C1】______ofinformationhavenothingtodowith
Supposeyouarethereinthemuseum,withthehead-sizedsmartphonepermanentlypositionedinfrontofyournose.Accordingtoa
KevinDaviessentasampleofhissalivatoagenetictestinglaboratoryinIcelandtolearnabouthishealthrisks.Whenherec
随机试题
骨肉瘤的好发年龄为:()
背景某宾馆大堂改造装修工程,考虑到施工范围和施工内容较为明确,工期较短,业主与承包商根据《建设工程施工合同(示范文本)》GF一2017—0201签订了固定总价合同。消防系统工程改造内容工程量目前无法确定,合同中约定此部分暂估价为120万元,同时合同约定消
最有助于肺脓肿诊断的症状是
患者,女,症见精神恍惚,心神不宁,悲忧善哭,时时欠伸,舌质淡,苔薄白,脉弦细,属郁证中的哪一证候
肝脏的首过作用是指
该Ig血清中含量水平该Ig之所以对防止新生儿感染有重要意义是因为
国际多式联运经营人可以是:
平等协商的形式包括()。
聪明:愚蠢
A:Howaboutseeingamoviewithmetoday,Alan?B:______
最新回复
(
0
)