首页
登录
职称英语
Space is a dangerous place, not only because of meteors (流星) but also becaus
Space is a dangerous place, not only because of meteors (流星) but also becaus
游客
2024-09-05
45
管理
问题
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 acts 【C1】_____ our protective blanket on earth. Light gets through, and this is 【C2】_____ for plants to make the food 【C3】_____ we eat. Heat, too, makes our environment endurable. Various kinds of rays 【C4】_____ the air from outer space, 【C5】_____ enormous quantities of radiation from the sun are 【C6】_____ off. As soon as men leave the atmosphere they are 【C7】_____to this radiation but their spacesuits or the walls of their spacecraft, 【C8】_____ they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known 【C9】_____ to explorers in space. The unit of radiation is called "rem (雷姆)". Scientists have reason to think that a man can 【C10】_____ far more radiation 【C11】_____ 0.1 rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely 【C12】_____ to be sure about radiation damage—a person may feel perfectly well, but the 【C13】_____ of his or her sex organs may be damaged, and this will not be discovered 【C14】_____ the birth of deformed children or even grandchildren.
Missions of the Apollo flights have had to cross belts of high amount of rems. So far, no dangerous amounts of radiation have been 【C15】_____, but the Apollo missions have been quite 【C16】_____. We simply do not know yet how men are going to get on when they 【C17】_____ weeks and months outside the 【C18】_____ of the atmosphere, working in a space laboratory. Drugs might help to 【C19】_____ the damage done by radiation, but no really 【C20】_____ ones have been found so far. [br] 【C7】
选项
A、exploited
B、exhibited
C、exposed
D、employed
答案
C
解析
考查形近动词辨析及上下文语义逻辑。be exposed to意为“暴露于”,填入空中指人离开大气层以后就暴露于各种辐射中,符合语境,故选C。exploit“开采;剥削”,exhibit“陈列;展示”,employ“雇佣;使用”,均不符合此处语境。
转载请注明原文地址:http://tihaiku.com/zcyy/3745407.html
相关试题推荐
BecauseJackhadbasedhisargumentuponafaulty______,hisopponentcheerfull
Disabilitybenefitsare______paymentsyougetifyoulosewagesbecauseyouri
PASSAGETWOBecausetheyhavebetterfamilyfinancialconditions.细节题。文章第一段前两句提到,孩
Davidwas______byhisfamilybecauseheworkedhandinglovewithagangofcrim
Becauseoftheeconomiccrisis,industrialoutputintheregionremained_____.(2
"Lookatthoseprettygirls’skirts"is______,becauseitisnotclearwhethert
Fromthe_____itwasclearthathewasguilty,becausehedidappearonthescene
_____isnoreasonfordischargingher.A、BecauseshewasafewminuteslateB、Owi
_____,heisalwaysmodest.A、WithallhisprofoundknowledgeB、Becauseofallhi
Myunclecan’tget_____becausehehasrheumatism(风湿病).A、aboutB、onC、through
随机试题
MEMOTo:AllStaffSubject:MandarinspeakingstaffMr.Wang,averydistinguish
Afewyearsagoitwasfashionabletospeakofagenerationgap,adivision
关于女性骨盆对分娩的影响,叙述错误的是A.真骨盆是胎儿娩出的骨产道 B.坐骨棘
有位初中同学这样描述自己:“情绪高涨起来像火山爆发,情绪低落下来像泄了气的皮球”
对于急性心肌梗死一周内,饮食方面应给予A、高脂饮食 B、高热量饮食 C、高胆
患者,男,60岁,左耳垂下无痛性肿物缓慢长大4年,局部有胀感。检查见肿块位于腮腺
在某工程网络计划的执行过程中,工作D的实际进度比计划进度滞后,滞后的时间大于其自
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
f(x)=x-arccotx,其增减性为( )。A.在(-∞,+∞)内是单调
某地建设一火电厂,厂址所在地形为丘陵,厂址周围有自然村和农田。工程供水水源为该地
最新回复
(
0
)