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 pho...
Cell Phones: Hang Up or Keep Talking? Millions of people are using cell pho...
admin
2020-12-24
55
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 veryvpopular 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, iti'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意为“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/yIMQKKKQ
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...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
ThreeWaystoBecomeMoreCreative Mostpeoplebelievetheydon’thavemuch...
随机试题
A.疏肝 B.止痉 C.升阳 D.解毒 E.清肺
在空间和时间上,近因一定是最接近损失结果的原因。
下列关于贷款合同填写要求的说法,错误的是( )。
上市公司公开发行股票,以下构成障碍的有( )
女性,52岁,既往患系统性红斑狼疮,因发热、意识模糊、精神异常,黄疸、血尿3天入院。血常规:白细胞10.6×10/L,血小板50×10/L,HGB60g/...
向善是人类一项最原始的追求。“最美妈妈”“最美教师”“最美司机”等平民英雄,以他们的善行义举传递着社会“正能量”,许多人表示“被感动了”“又相信这个世界了...
证券公司与客户签订证券交易委托代理协议,应当为客户开立()。A.交易账户B.证券账户C.私募账户D.资金账户
下列支护方式中,不属于隧道初期支护的是()。A.喷射混凝土B.喷锚支护C.管棚D.钢支护
私募基金设立和投资须关注的事项不包括()。A.向特定对象募集资金B.非公开宣传C.限定基金的风险范围D.不得承诺保底收益或最低收益
为了对准则制定工作提供组织保障,财政部设立( ),负责审议准则制定计划,指导准则起草工作,审议准则稿,协调准则实施。A、评估审议委员会B、评估准则委员会C