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
15
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] 【C6】
选项
A、environment
B、space
C、atmosphere
D、earth
答案
C
解析
根据上题所讲,penetrate这个动词后面应接atmosphere“大气”这个名词。
转载请注明原文地址:https://tihaiku.com/zcyy/3451391.html
相关试题推荐
They______becausethelight’son!A、musthavegoneoutB、can’thavegoneoutC、
[audioFiles]audio_eufm_j75_001(20082)[/audioFiles]A、Becausethepolicemanstopp
Don’thesitatetodoitbecausewhatyoudo____________(对我没有很大关系).doesnotmak
I________(想暑假外出旅游)becauseIenjoymeetingpeopleandseeingnewplaces.feell
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecause
随机试题
[originaltext]Americanssufferfromanoverdoseofwork.Regardlessofwho
[originaltext]Choosingwhattoeatisnolongeraseasyasitoncewas.Sto
为什么说PQRSTC是物流系统设计的钥匙
A.局灶性大量中性粒细胞浸润及组织坏死液化 B.疏松组织的弥漫性化脓性炎症
BIM的用途决定了BIM模型的精度,同时仅靠一个BIM工具并不能完成所有的工作,
正常情况下,全口义齿前牙应()A.正中位时,上下前牙留有较大的间隙
叶绿体和线粒体是动植物体中细胞中共有的能量转换器。
为了实现产业的合理布局,国家对产业存在和发展的空间形式规范的政策措施是()。A
某女,60岁,咽中不适,如有物梗阻,咯之不出,咽之不下,胸闷胁痛,苔白腻,脉弦滑
教师职业道德区别于其他职业道德的显著标志是( )。A.为人师表 B.清正廉洁
最新回复
(
0
)