首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Nuclear power’s danger to health, safety, and even life itself can be summed up in one word: radiation. Nuclear radiation ha
Nuclear power’s danger to health, safety, and even life itself can be summed up in one word: radiation. Nuclear radiation ha
admin
2011-02-25
52
问题
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 radio activity 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 levels 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 he 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.
Radiation can hurt us in the way that it can______.
选项
A、kill large numbers of cells in main organs so as to cause death immediately
B、damage cells which may grow into cancer years later
C、affect the healthy growth of our offspring
D、all of the above
答案
D
解析
据第三、四段的内容我们得知:辐射对我们的伤害:1.它可以杀死大量重要器官的细胞,造成立即死亡;2.损坏的细胞导致以后的癌症;3.影响后代的健康。
转载请注明原文地址:https://kaotiyun.com/show/GqZ4777K
0
考研英语一
相关试题推荐
Whenadiseaseofepidemicproportionsthreatensthepublic,scientistsimmediatelygettowork,tryingtolocatethesourceof
Whenadiseaseofepidemicproportionsthreatensthepublic,scientistsimmediatelygettowork,tryingtolocatethesourceof
Studythefollowingdrawingcarefullyandwriteanessayinwhichyoushould1)describethedrawing.2)analyzetheaim
Inthefollowingtext,somesentenceshavebeenremoved.ForQuestions41-45,choosethemostsuitableonefromthelist(A、B、C、
Theword"overwhelming"(Paragraph1)probablymeansAccordingtothepassage,whatdoessocialcapitalreferto?
Mostofusthinkweknowthekindofkidwhobecomesakiller,andmostofthetimewe’reright.Boys(1)_____about85%ofall
Mostofusthinkweknowthekindofkidwhobecomesakiller,andmostofthetimewe’reright.Boys(1)_____about85%ofall
Accordingtothetext,scholarsandstudentsaregreattravelersbecauseDevelopmentsininternationalcooperationareoften,i
Withthedevelopmentoftheglobaleconomy,manycompaniesstatetheirbasicobjectiveofengaginginaworldwidemanufacturing
Difficultiesininterculturalcommunicationarisewhenthereislittleornoawarenessofdivergentculturalvaluesandbeliefs.
随机试题
HowtoReduceYourWeight?Youfeelsad;"Iskipmybreakfastandsupper.Iruneverymorningandevening.WhatelsecanId
某一急性药物中毒患者,表现为昏迷、瞳孔极度缩小,呼吸深度抑制,血压降低,出现上述中毒症状的药物是
公安科技群众化的内容主要有()。
依次填入下列各句横线上的词语,最恰当的一组是:读者在阅读文章时,他们最为________的,往往是作者对生活的理解和感受。当他们的亲身________与作者的思想、感情发生________时,就可能________对生活的思考和分析。
我国宪法规定,全国人民代表大会代表受()的监督。
在计算机内部,不需要编译,计算机就能够直接执行的语言是()。
VBA语句“DimNewArray(10)asInteger”的含义是
在购买计算机时,“PentiumⅡ300”中的300是指
一个字符的标准ASCII码的长度是()。
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactionopentohim:hecangivetheinventiontofilew
最新回复
(
0
)