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
83
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?
BellInancienttimesallovertheworld,/itwasbelievedthatevilspiritscouldputupwith/justaboutanythingexcept
EachtimeKristyIngramtakesarun,herappsareupandrunningbeforesheeventakesoff."IusetechnologyeverytimeIr
[A]apparent[B]automatic[C]Consequently[D]Decidedly[E]decline[F]delightful[G]enrollments[H]financial[I]intimate[J]junior[K]prof
[A]apparent[B]automatic[C]Consequently[D]Decidedly[E]decline[F]delightful[G]enrollments[H]financial[I]intimate[J]junior[K]prof
A、Itislessproductivethanexpected.B、ItisfromGermanytoCapeTown.C、Itcrossesdifferenttimezones.D、Itisfromtheso
A、Heisafraidofit.B、Heisliberalaboutit.C、Heissickofit.D、Heisstronglyagainstit.D
A、Thepayisnotgoodenough.B、Therewillbetoomuchworkload.C、Somethingunfairmayhappen.D、Thereishardlyanypromotion.
InmyfirstyearattheuniversityIlearntthe______ofjournalism.
A、Itislessproductivethanexpected.B、ItisfromGermanytoCapeTown.C、Itcrossesdifferenttimezones.D、Itisfromtheso
随机试题
________representsthebasisforthemeaningofasentence,althoughitisnotsupposedtoprovidethefullmeaningofasentenc
药物发生不良反应,组织鉴定的时间是对药品查封、扣压后,作出行政处理决定的时间是
治疗崩漏的三法是()
A市甲区的先科技术开发公司与A市乙区的融商投资公司签订了一份联合开发游戏软件的合同。后来在履行合同过程中,双方发生争议。先科技术开发公司依据合同中的仲裁条款向约定的仲裁委员会申请仲裁,仲裁委员会依法受理了该争议案件。请分析案例,并回答下列问题:
出口口岸()运输工具名称()
InitialreportswerethatmultiplewavesofwarplanesbombedcentralBaghdad,hittingoilrefineriesandtheairport.
运用净现值法评价投资项目时要用到折现率,试分析确定折现率的方法,并说明优点或缺点。
AstudyofhowolderteenagersusesocialmediahasfoundthatFacebookis"notjustontheslide,itisbasicallydeadandburi
关系数据库规范化的目的是为了解决关系数据库中的()
WhatkindofoverviewdoesthebookintendtogiveaboutAmericansociety?
最新回复
(
0
)