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
60
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
喉软骨中成对的软骨是 A.杓状软骨 B.甲状软骨 C.环状软骨 D.会厌
被学校行政处分后,张老师认为学校对自己很不公平,依据《中华人民共和国教师法》,张
依据变电检修管理规定,检修项目管理单位是外包工作实施的管理主体,应按照合同要求落
冠桩的直径大约为根管直径的
汶川地震给广大受灾群众及学生造成了心理上的伤害,灾区开设心理健康恢复班,你作为负
《动车组以外列车的机务行车安全措施》规定:机务段内机车车辆防溜工作实行“谁作业、谁负责”的原则。谁停留,谁设置;谁移动,谁撤除。段内调车作业时,有调车人员...
患儿男,3岁,盗汗3个月,也常伴自汗,身体消瘦,神萎不振,心烦少寐,手足心热,哭声无力,口唇淡红,舌质淡,苔少,有剥脱,脉细弱。 此患儿的诊断应为A.汗证,气
患者女,35岁。半年前母亲突然病故。此后失眠、情绪低沉、不愿与人交往。近3个月来独处时常听见有声音对她讲话,说母病故与某人有关,故多次给公安机关写信反映母...
包括表皮层及一部分真皮层的是A.表层皮片B.中厚皮片C.全厚皮片D.轴型皮瓣E.岛状皮瓣
总体而言,金融市场的基本功能包括()。A:聚敛功能B:调节功能C:配置功能D:反映功能E:发展功能