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
2023-07-26
51
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://www.tihaiku.com/zcyy/2871976.html
相关试题推荐
[originaltext]Somementalhealthresearchhaslinkeddepressioninwomenwi
StoppingSmoking:ASH’s15Tips—ActiononSmokingandHealth1
StoppingSmoking:ASH’s15Tips—ActiononSmokingandHealth1
StoppingSmoking:ASH’s15Tips—ActiononSmokingandHealth1
StoppingSmoking:ASH’s15Tips—ActiononSmokingandHealth1
StoppingSmoking:ASH’s15Tips—ActiononSmokingandHealth1
[originaltext]W:James,what’syouropinionaboutnuclearenergy?M:Nuclearen
[originaltext]W:James,what’syouropinionaboutnuclearenergy?M:Nuclearen
[originaltext]W:James,what’syouropinionaboutnuclearenergy?M:Nuclearen
[originaltext]Recentlytheterm"health"hascometohaveawidermeaningt
随机试题
Whathasthewomanbeendoing?[br][originaltext]M:Iseeyouandyourfriends
Thebrainsofchildrenareaffectedbyfamilyviolenceinthesamewayasc
分析问题找出主要矛盾的过程是解决问题的( )A.明确问题阶段 B.提出问题阶
患者,女,26岁,反复口腔溃疡、颜面部皮疹3年,化验检查外周血白细胞及血小板减少
一个同学上课回答问题不当,受到同学嘲笑,教师应该如何处理?
A.肠痈B.癥积C.蛔虫D.泄泻E.燥屎右少腹作痛拒按,按之包块应手的是
( )将企事业单位的所有岗位纳入由职组、职系、岗级和岗等构成的体系之中。A.岗
小张和甲银行签订借款合同,约定小张向银行借款10万元,银行当日交付借款,小张一年
根据《房屋建筑与装饰工程工程量计算规范》(GB50854-2013),现浇混凝
王某与母亲生活在不同的城市。在母亲生日之际,王某通过一家购物网站订送了鲜花,以示
最新回复
(
0
)