首页
登录
职称英语
A. endurable B. protection C. exposed D. if E. untilF. extremely G. acts as H.
A. endurable B. protection C. exposed D. if E. untilF. extremely G. acts as H.
游客
2023-10-29
49
管理
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. [br] 【C6】
选项
答案
F
解析
空格所在句句子结构完整,推断此处应填入副词,修饰形容词difficult。由下文的要等到生下畸形的子女甚至是要等到生下孙子才会发现,可知要确定辐射的危害很难,extremely符合句意。
转载请注明原文地址:http://tihaiku.com/zcyy/3141302.html
相关试题推荐
OldAmericansareextremelyreluctanttobuyon______andlikelytosaveasmuch
PASSAGETWOKidsexposedtoviolenceperformpoorer.根据第七段第三句可知,Ellen和同事们发现,如果孩子们住
A.endurableB.protectionC.exposedD.ifE.untilF.extremelyG.actsasH.
A.endurableB.protectionC.exposedD.ifE.untilF.extremelyG.actsasH.
A.endurableB.protectionC.exposedD.ifE.untilF.extremelyG.actsasH.
A.endurableB.protectionC.exposedD.ifE.untilF.extremelyG.actsasH.
A.endurableB.protectionC.exposedD.ifE.untilF.extremelyG.actsasH.
A.endurableB.protectionC.exposedD.ifE.untilF.extremelyG.actsasH.
Theparty,______Iwastheguestofhonour,wasextremelyenjoyable.A、bywhichB
PASSAGETWOBytransplanting“anti-freeze”geneintootherspecies.根据题目中的extremely
随机试题
PREPARINGFORASCHOLARSHIPINTERVIEW[br]Sophieworksas[originaltext]S:Hi,
FollowingNature’sSignpostsFormany,"navigation"
Theaccessibilityofcleanwaterisoneofthemostimportantcomponentsin
[originaltext](19)Theportable,paperlesse-newspaperswouldbeahugeenv
[originaltext]Franceisfacingpotentiallymorethan$1billioninlostrevenue
五脏中,女性经血之源是( )。A.肝 B.心 C.脾 D.肺 E.肾
某仲裁委员会对甲公司与乙公司之间的买卖合同一案作出裁决后,发现该裁决存在超裁情形
A.质量为2m的滑块受到重力、绳的张力、沿斜面的下滑力和斜面的支持力的作用 B
某市某县烟花爆竹厂未经批准擅自生产烟花爆竹。个体工商户甲从该厂采购烟花爆竹零售
(2018年真题)甲公司出纳刘某在为员工孙某办理业务时,发现采购发票上所注单价
最新回复
(
0
)