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
2023-10-26
17
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] 【C8】
选项
A、if
B、so
C、for
D、lest
答案
A
解析
考查上下文语义逻辑。下文的inside指的是“待在太空船里”,此空所在句是对前面the walls of their spacecraft的补充说明,据此可推断是在待在太空船的条件下,太空船的船板才起到避免辐射损伤的作用,故选表条件的if,即选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3130840.html
相关试题推荐
BecauseJackhadbasedhisargumentuponafaulty______,hisopponentcheerfull
Thebadnewswasthathecouldbeaverydangerousperson______hechoosetobe.A
PASSAGETWOBecausetheyhavebetterfamilyfinancialconditions.细节题。文章第一段前两句提到,孩
Agreencampusiswhatmostpeopledesirefor,becausegoodcampusenvironme
Ourjourneywasslowbecausethetrainstopped______atdifferentvillages.A、un
"Lookatthoseprettygirls’skirts"is______,becauseitisnotclearwhethert
Youhadonlyyourselfto______foryourlossinthestockmarketbecauseyouneve
_____isnoreasonfordischargingher.A、BecauseshewasafewminuteslateB、Owi
_____,heisalwaysmodest.A、WithallhisprofoundknowledgeB、Becauseofallhi
Heistheonlypersonwhocan______inthiscase,becausetheotherwitnessesw
随机试题
Theexperiment,()willsoonbeannounced,wasdonebymycolleagues.A、whoseres
WriteonANSWERSHEETTWOacompositionofabout200wordsonthefollowingt
被人们与爱因斯坦相提并论的早期现代舞奠基人是:()A.露丝·圣丹尼丝 B.鲁
林老师发现乐乐最近变得很爱打人,还经常不来幼儿园,林老师想要和家长沟通,详细了解
物料在高真空和低温条件下的干燥是A.微波干燥B.沸腾干燥C.喷雾干燥D.红外干燥
有些人喜欢用显微镜去观察一片叶子,()有些人喜欢用肉眼去细看木头的年轮,真正
系统运行数据中涉及基金投资人信息和交易记录的备份应当在移动硬盘上保存15年。()
证券期货经营机构应当根据(),对其适合销售产品或者提供服务的投资者类型作出
下列关于同一控制下企业合并形成的长期股权投资会计处理表述中,正确的有( )。
根据《民用机场飞行区技术标准》MH5001—2013规定,跑道表面应具有良好的
最新回复
(
0
)