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
54
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
Highereducationisn’tforeveryone,andpeoplehaveavarietyofpathstochoosefromoncetheygraduatefromhighschool.They
WhichofthefollowingisNOTmentionedinthenews?
[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、SheenjoysAmericanTVshowsandradioprogramsmore.B、Shewantstomakesomenewfriendsatschool.C、Sheistoobusytowat
Beforemymanyyears’serviceinarestaurant,Iattendedatopscienceuniversity.Atthattime,Iwasfinishingtheprojectth
Thescandalbeingexposed,hewasremovedfromofficeconsequently.Theunderlinedwordmeans______.
GreenLaundryCleaningInyourbattleagainsttoughstains,theremaybesomeunintendedvictims./Conventionallaundrymet
[A]pleasure[B]going[C]psychological[D]directly[E]succeeds[F]trouble[G]specializes[H]keep[I]mood[J]decrease[K]suggests[
ChangingRateofEmploymentWestGermanyhadoneofthelowestratesofunemploymentbackin1980./Butthenoverthenext
随机试题
=______,其中D为以点O(0,0)、A(1,0)、B(0,2)为顶点的三角形区域。
A.<30mlB.50mlC.150mlD.250mlE.500ml当发现有心包积液体征时,如奇脉、肝大、颈静脉怒张,估计其液体量已超过
宪法政治学
直属海关是指由海关总署领导,负责管理一个省内海关业务的海关。()
下列不属于会计信息质量要求的有()。
如果无差异曲线上任何一点的斜率=-1/2,则意味着当消费者拥有更多的商品x时,愿意放弃()单位商品x而获得1单位的商品y。
下列属于WindowsXP自带的输入法的是()。
虚拟局域网通常采用交换机端口号、MAC地址、网络层地址或()。
在窗体上画一个命令按钮和一个文本框(名称分别为Command1和Text1),并把窗体的KeyPreview属性设置为True,然后编写如下代码:DimSaveAllAsStringPrivateSubForm_Load()
用户名为XUEJY的正确电子邮件地址是()。
最新回复
(
0
)