首页
登录
职称英语
Space is a dangerous place, not only because of meteors(流星)but also because of r
Space is a dangerous place, not only because of meteors(流星)but also because of r
游客
2023-07-18
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【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(宇宙的)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 "rem(雷姆)". 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 milligrams; 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] 【C15】
选项
A、receive
B、accept
C、bring
D、catch
答案
A
解析
receive表示客观收到:accept表示主观接受。我们受到的辐射并非主观接受。
转载请注明原文地址:https://tihaiku.com/zcyy/2848303.html
相关试题推荐
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
[originaltext]W:Whydidn’tyouhaveyourphysicsclasstoday?M:Becauseonly
[originaltext]W:Whydidn’tyouhaveyourphysicsclasstoday?M:Becauseonly
[originaltext]W:Whydidn’tyouhaveyourphysicsclasstoday?M:Becauseonly
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashug
随机试题
WhatwillNOTbediscussedbypoliticiansduringtheG8Summit?[br][originalt
[originaltext]W:Willyoutakethesebookstothelibraryduringyourlunchhou
ShouldMedicalSchoolsTurntoThree-yearPrograms?[A]ForTravisHill,
Themoreyouunderstandyourcomputer,the______itisthatyouwillfindoutt
SupersizeSurpriseA)Askanyonewhytherei
【教学过程】 (一)游戏导入 上课伊始,教师引导学生思考:大家平时都做过什么手工呢? 学生自由回答。(叠纸鹤;叠小船) 教师总结:同学们的手工制作还是挺
火灾自动报警系统应设置火灾声光警报器,并在确认火灾后启动()火灾声光警报
食品安全事故应急预案体系分为国家和地方两个层面,包括( )等内容。A.食品安全
下列系统需求中,GIS系统功能设计需考虑的是()。A.空间分析 B.网
分泌正常时以促进合成代谢为主,分泌过多时则以促进分解代谢为主的激素是( )。A
最新回复
(
0
)