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
2024-02-14
25
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【C2】______. Light gets through, and this is essential【C3】______plants to make the food which we【C4】______. Heat,【C5】______, makes our environments tolerable and some ultraviolet rays(紫外线) penetrate the【C6】______. Cosmic rays of various kinds come【C7】______the air from outer space, but【C8】______quantities of radiation from the sun are screened off.【C9】______ men leave the atmosphere they are【C10】______to this radiation;【C11】______their spacesuits or the walls of their spacecraft, if they are inside,【C12】______prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in【C13】______. Doses of radiation are measured in【C14】______called "rems" (雷目). We all【C15】______radiation here on earth from the sun, from cosmic rays, and from radioactive minerals. The"【C16】______"dose of radiation that we receive each year is about two millirems; it【C17】______according to where you live, and this is a very rough estimate. Scientists have reason to think【C18】______a man can【C19】______far more radiation【C20】______without being damaged; the figure of 60 rems has been agreed. [br] 【C2】
选项
A、stars
B、sun
C、earth
D、space
答案
C
解析
见上题译文。
转载请注明原文地址:https://tihaiku.com/zcyy/3451387.html
相关试题推荐
【B1】[br]【B10】A、BecauseB、ThoughC、WhetherD、IfD结构衔接题。这句的意思是“如果选不到这些课程的话,还会有许多
Don’thesitatetodoitbecausewhatyoudo____________(对我没有很大关系).doesnotmak
Hewasarrestedbythepolicebecausehe__________(对这场交通事故负有责任)wasresponsiblef
I________(想暑假外出旅游)becauseIenjoymeetingpeopleandseeingnewplaces.feell
Icouldn’tsleeplastnightbecausethetapinthebathroomwas______.A、draining
They____________(被拒绝进入)themilitaryexhibitionbecausetheywereforeigners.
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
随机试题
WhyWeAreTouchedByTheSoundofMusicFromsimplefolk
SarrElysetookasipfromaplasticcup.Likeapractisedwinetaster,she
GenerationXXLAsocietyofobesechildren
Manyayoungpersontellsmehewantstobeawriter.Ialwaysencouragesuc
从符号化到数字化,信息在人类进化和文明发展中的重要性毋庸置疑。如果说符号化产生了
A.水解乙酰胆碱 B.抑制凝血酶 C.特异地与球蛋白结合 D.专与血红素结
电信网间互联管制的原则之一是()。A.保证运营商获利水平一致 B.保证非歧视性
共用题干某研究机构为分析三个地区通信设备市场的竞争程度,现收集了最近一年三个地
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
(2017年)根据《建筑施工场界环境噪声排放标准》,关于环境噪声排放限值的说法,
最新回复
(
0
)