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
外语
A. endurable B. protection C. exposed D. if E. until F. extremely G. acts as H. decrease I. curable J. disaster K. attributed L.
A. endurable B. protection C. exposed D. if E. until F. extremely G. acts as H. decrease I. curable J. disaster K. attributed L.
admin
2017-06-17
56
问题
A. endurable B. protection C. exposed D. if E. until
F. extremely G. acts as H. decrease I. curable J. disaster
K. attributed L. danger M. effective N. before O. essential
Space is a dangerous place, not only because of meteors(流星)but also because of rays from the sun and other stars. The atmosphere again【C1】______ our protective blanket on earth. Light gets through, and this is【C2】______ for plants to make the food we eat. Heat, too, makes our environment【C3】______. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are【C4】______ to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known【C5】______ to explorers in space. The unit of radiation is called "rem (雷姆)". Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged. The trouble is that it is【C6】______ difficult to be sure about radiation damage—a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered【C7】______ the birth of deformed children or even grandchildren.
We simply do not know yet how men are going to get on when they spend weeks and months outside the【C8】______ of the atmosphere, working in a space laboratory. Drugs might help to【C9】______ the damage done by radiation, but no really【C10】______ ones have been found so far.
【C5】
选项
答案
L
解析
定冠词the提示此处填入名词。大多数辐射对人是有害的,由此可首先锁定disaster、danger;再联系下文的“……人可以忍受远大于0.1雷姆的辐射而不受到损伤(damaged)”,由此说明“辐射”是一种“可能造成损伤的事物”而非灾难性的事物,danger符合句意。
转载请注明原文地址:https://kaotiyun.com/show/XxDK777K
0
专业英语四级
相关试题推荐
WhichofthefollowingdetailsisINCORRECT?
Wealth财富Owningcars,largehouses,orswimmingpools/meandifferentthingsindifferentcultures/andmayconfuseavis
BellInancienttimesallovertheworld,/itwasbelievedthatevilspiritscouldputupwith/justaboutanythingexcept
Whatshouldbedoneinordertofeedalargepopulation?
Thestrongerachild’svocabulary,themoresuccessfulshetendstobeinschool,andnewresearchshowsthattheword-building
[A]advocates[B]approaching[C]constantly[D]decrease[E]enlarge[F]financial[G]fundamental[H]gracious[I]ignored[J]intention[K]just
A、Heisafraidofit.B、Heisliberalaboutit.C、Heissickofit.D、Heisstronglyagainstit.D
A、Shehasn’tsentresumesyet.B、Shehasn’tgotanyrepliesyet.C、Shehasgotsomenewchances.D、Shehasalreadysignedacont
A、Hehasthenationalityofthiscountry.B、Hehasalreadyhadadrivinglicense.C、Hemarriedaforeignwoman.D、Hewantstobo
StrikesanddemonstrationsinGermany,BritainandFrancehelpedtomaketheshorterworkingweekaunionpriority.Employersga
随机试题
有下列情形之一的,不予医师执业注册,除了
平阳霉素环磷酰胺
患者,男,70岁。全口义齿初戴1周,咬合时上腭压痛。检查:上颌硬区黏膜红肿,余未见异常。首选的处理方法是
直接酸碱滴定法测定阿司匹林含量时,当滴定进行完全后,1mol的氢氧化钠相当阿司匹林的摩尔数是
图示两电路相互等效,由图(b)可知,流经10Ω电阻的电流IR=1A,由此可求得流经图(a)电路中10Ω电阻的电流I等于()。
某水库枢纽工程主要由大坝及泄水闸等组成。大坝为壤土均质坝,最大坝高15.5m,坝长1135m。该大坝施工承包商首先根据设计要求就近选择某一料场,该料场土料黏粒含量较高,含水量较适中。在施工过程中,料场土料含水量因天气等各种原因发生变化,比施工最优
中国奉行独立自主的和平外交政策,始终不渝地走和平发展道路,绝对不会因为综合国力的增强而改变。这是基于()。①和平与发展的当今时代潮流②全球化使国家间的利益趋于一致③我国的国家性质和历史传统④国家间共同利益高于国家自身利益
甲容器中有浓度18%的盐水若干,乙容器中盐水浓度为12%,其质量为甲容器中盐水质量的一半,则甲、乙容器中盐水混合后的浓度为:
WithAirbus’sgiantA380airlinerabouttotaketotheskies,youmightthinkplanescouldnotgetmuchbiggerandyouwouldbe
Entertheinformationage.Informationistherawmaterialformanyofthebusinessactivities【C1】______thisnewera,justas
最新回复
(
0
)