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
47
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
通过消化道感染并侵犯中枢神经系统的病毒是() A.流行性乙型脑炎病毒 B.狂
助理理财规划师在收集与整理客户信息时可能会接触到客户大量的财务机密,对此助理理财
依据《通用安装工程量计算规范》(GB50856-2013)的规定,风管工程
(2016年)根据《测绘成果质量监督抽查管理办法》,受检单位对监督检验结论有异议
材料一:党的十九大报告指出,改革开放之初,我们党发出了走自己的路、建设中国特色社
被告人王某在某市宣武区白纸坊云霞彩扩部,撬锁入室盗窃被害人李某的海鸥牌照相机一部
脑脊液黄色见于A:流行性脑膜炎B:化脓性脑膜炎C:蛛网膜下腔出血D:结核性脑膜炎E:脑膜黑色素肉瘤
抗菌药物临床应用应当遵循()的原则。A:安全、有效、合理B:安全、有效、经济C:合理、有效、经济D:安全、有效、方便
某工程合同总额为2000万元,工程预付款为400万元,主要材料、构件所占比重为50%,则当工程完成()万元时,本项工程预付款开始起扣。 A.1...
项目进行过程中,在()阶段项目团队要给出具体的工作任务和最终准确的成本估算,并向利益相关者提交绩效报告。A.项目定义B.项目开发C.项目实施D.项目收尾阶