首页
登录
职称英语
Nuclear power is dangerous to health, safety and even life itself. The dange
Nuclear power is dangerous to health, safety and even life itself. The dange
游客
2024-02-27
19
管理
问题
Nuclear power is dangerous to health, safety and even life itself. The danger from nuclear power 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 (全部地) 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 a result of radiation absorbed by its grandparents. Radiation can hurt us. We must know the truth. [br] What can we infer from the passage?
选项
A、We can’t detect radioactivity even with modern equipment.
B、Only radiation at very high levels can kill an animal or human being.
C、If a few cells are only damaged, healthy cells will take the place of dead ones.
D、Radiation is harmful no matter what level it is.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3488236.html
相关试题推荐
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
Thebiggestsafetythreatfacingairlinestodaymaynotbeaterroristwith
____________(如果你戒烟),you’llbemuchhealthier.Ifyougiveupsmoking/ifyoustop
Wantaglimpseofthefutureofhealthcare?Takealookatthewaythevari
Wantaglimpseofthefutureofhealthcare?Takealookatthewaythevari
Wantaglimpseofthefutureofhealthcare?Takealookatthewaythevari
Wantaglimpseofthefutureofhealthcare?Takealookatthewaythevari
随机试题
RichAmericansarewillingtotakeconspicuousconsumptiontonewheightsby
[originaltext]W:Doyouthinkyoucangiveanexactdefinitionof"management",
Ingeneral,children’sholophrasticsentencesbegin______.A、inthelatepartof
下列关于无粘结预应力筋技术要求,说法错误的是()。A.预应力筋外包层材料,
事故报告主要应当包括()。A.事故的发生时间、地点和工程项目名称 B.事故
债权人在项目融资过程中,关注的重点是()。A.抵押人所提供的抵押物的价值 B.
动脉导管未闭血流动力学的改变首先是引起A.左心房增大 B.左心室增大 C.右
建设单位接受施工单位对分部工程报验申请后应组织()等单位有关项目负责人及技术负责
衡量经济规模合理性的指标通常有()等。A:单位生产能力 B:单位投资利润
根据《环境影响评价技术导则—声环境》,若按声源种类划分,声环境影响评价类别分为(
最新回复
(
0
)