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
60
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.
【C9】
选项
答案
H
解析
help(to)do sth.为固定搭配,空格处填入动词原形。通常来说药物可帮助减少损伤,备选项中decrease“减少”,符合句意。
转载请注明原文地址:https://kaotiyun.com/show/FxDK777K
0
专业英语四级
相关试题推荐
WhichofthefollowingdetailsaboutHitchcockisINCORRECT?
OldAgeManypeoplemistakenlybelievethatoldageisatimeofincreasedillnessandloneliness./Infact,peopledonot
Mymother’sparentscamefromHungary,butmygrandfatherwaseducatedinGermany.Itseemshewasabletoholdaconversationi
"Ifinditreallyattractivehowsuccessfulyouare,"mydatesaid,leaninginforakiss.Sure,itsoundslikealine.But
[A]advocates[B]approaching[C]constantly[D]decrease[E]enlarge[F]financial[G]fundamental[H]gracious[I]ignored[J]intention[K]just
A、Borrowanightdress.B、Rentanightdress.C、Buyanightdress.D、Wearsomethingelse.B
A、Itislessproductivethanexpected.B、ItisfromGermanytoCapeTown.C、Itcrossesdifferenttimezones.D、Itisfromtheso
Beforemymanyyears’serviceinarestaurant,Iattendedatopscienceuniversity.Atthattime,Iwasfinishingtheprojectth
CriticalThinking&InnovativeWritingI.Aheateddiscussionaboutthe【T1】ofEnglishteachingand【T1】______learning.1)Abottl
CriticalThinking&InnovativeWritingI.Aheateddiscussionaboutthe【T1】ofEnglishteachingand【T1】______learning.1)Abottl
随机试题
反馈
急性肾衰竭的处理要点不恰当的是
采集样品的量能反映该食品的卫生质量和满足检验项目对样品量的需要。请问,一般一式
应选用何种浓度的磷酸进行酸蚀操作过程中哪一项不正确
甲公司7月1日通过报纸发布广告,称其有某型号的电脑出售,每台售价8000元,随到随购。数量不限,广告有效期至7月30日。乙公司委托王某携带金额16万元的支票于7月28日到甲公司购买电脑,但甲公司称广告所述电脑已全部售完。乙公司为此受到一定的经济损失。根据合
依据《义务教育音乐课程标准(2011年版)》的基本理念,对下面教学设计的展开阶段进行分析、评价。【课程名称】梨园风采——《夫妻双双把家还》【教学对象】九年级学生【教学内容】学唱与表演《夫妻双双把家还》【主要目标】
某地举办农业种植养殖技术培训班,邀请了知名专家为农民免费授课。然而,在开班授课的当天,却没有农民到场听课。下列最有助于解释以上现象的一项是()。
英国是世界上最早建立存款保险制度的国家。()
Howoldistheyoungerbrother?
MountRushmoreisanationalmonumentlocatedintheBlackHillsofSouthDakota.Carvedintothesideofthelargemountainare
最新回复
(
0
)