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
共用题干 第一篇Nuclear Power and Its DangerNuclear power's danger to health,safety...
共用题干 第一篇Nuclear Power and Its DangerNuclear power's danger to health,safety...
admin
2020-12-24
37
问题
共用题干
第一篇
Nuclear Power and Its Danger
Nuclear power's danger to health,safety,and even life itself can be summed up in one word:radiation.
Nuclear radiation has a certain mystery about it,partly because it cannot be detected by human senses.It can't be seen or heard,or touched or tasted,even though it may be all around us.There are other things like that. For example,radio waves are all around us but we can't detect them,sense them,without a radio receiver. Similarly,we can't sense radioactivity without a radiation detector. But unlike common radio waves,nuclear radiation is not harmless to human beings and other living things.
At very high levels,radiation can kill an animal or human being outright by killing masses of cells in vital organs.But even the lowest level of radiation can do serious damage.There is no level of radiation that is completely safe.If the radiation does not hit anything important,the damage may not be significant. This is the case when only a few cells are hit,and if they are killed outright,your body will replace the dead cells with healthy ones.But if the few cells are only damaged,and if they reproduce themselves,you may be in trouble.They reproduce themselves in a deformed way.They can grow into cancer. Sometimes this does not show up for many years.
This is another reason for some of the mystery about nuclear radiation.Serious damage can be done without the victim being aware at the time that damage has occurred.A person can be irradiated and feel fine,then die of cancer five,ten,or twenty years later as a result.Or a child can be born weak or liable to serious illness as result of radiation absorbed by its grandparents.
Radiation can hurt us.We must know the truth.
选项
According to the passage,the danger of nuclear power lies in________.
A:nuclear mystery
B:radiation detection
C:nuclear radiation
D:radiation level
答案
C
解析
第一段就明确指出核能的危险在于核辐射。
第三段提到,即使很微量的辐射也会带来严重的后果,主要因为受损伤的细胞会以崎形的方式自我复制,进而转变为癌症。
not be significant指不太要紧的、不致命的,所以选A。
核辐射会给我们选项A、B和C几个方面的损害,只有D概括较全面,所以D正确。
文章第二段和第四段分别提到了不同的“reasons for some of the mystery tbout nuclear radiation",由此可以推断,核辐射仍然是一个未解之谜。
转载请注明原文地址:https://ti.zuoweng.com/ti/YoMQKKKQ
相关试题推荐
Ouraimwastoupdatethehealthservice,andwesucceeded.A.modernizeB.offer
Heassertedthatnuclearpowerwasasafeandnon-pollutingenergysource.Amain
McGrady'sSpectacularArt 1WhenTracyMcGradyishealthy,hisplaycanbe...
McGrady'sSpectacularArt 1WhenTracyMcGradyishealthy,hisplaycanbe...
Allthepupilsseemtobeverycheerful.()A.happyB.healthyC.naughtyD.busy
ThedocumentwascompiledbytheDepartmentofHealth.()A.printedB.attachedC.w
RaisingHappy,HealthyChildren Icallmyselfexpertatraisingchildrenno...
Forthelastfiveyearsofhislife,hewasclinicallyinsane.()A.crazyB.health
RaisingHappy,HealthyChildren Icallmyselfexpertatraisingchildrenno...
Forthelastfiveyearsofhislife,hewasclinicallyinsane.()A.crazyB.health
随机试题
(82-83题共用备选答案) A.被甲类传染病病原体污染的污水 B.被可疑乙
下面哪个不是电流互感器的文字符号。()
《药品经营质量管理规范》要求药品验收记录保存
风险管理过程是组织管理的有机组成部分,风险评估是风险管理过程重要的组成部分。风险
(2017真题)根据《中华人民共和国合同法》,下列内容中,作为合同法定条款的有(
民用爆炸物品丢失、被盗、被抢,应当立即报告( )。
患者,女,35岁,带下量多,绵绵不断,质清稀如水;腰酸如折,畏寒肢冷,面色晦暗,
砒霜中毒选择何种解毒剂
影响大气扩散能力的主要热力因子是()。A:风和大气稳定度B:温度层结和湍流C:风和湍流D:温度层结和大气稳定度
共用题干 一般资料:张某,女性,19岁,大学一年级学生。案例介绍:张某上大学近一年来,学习认真,成绩良好,很乐于助人,人际关系良好,是班里的团支部副书...