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
2023-07-14
30
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] 【C12】
选项
A、get
B、make
C、have
D、do
答案
D
解析
do+动词原型的结构用来强调谓语动词。
转载请注明原文地址:https://tihaiku.com/zcyy/2835131.html
相关试题推荐
[audioFiles]audio_eufm_j75_001(20082)[/audioFiles]A、Becausethepolicemanstopp
Don’thesitatetodoitbecausewhatyoudo____________(对我没有很大关系).doesnotmak
Hewasarrestedbythepolicebecausehe__________(对这场交通事故负有责任)wasresponsiblef
Skydiving,adifficultanddangeroussport,isverypopular______bothmenand
The__________oftherelieftothefloodedareawasheldupbecauseoftheincon
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
Humorcanreducedistressandunhappiness______(通过营造欢快友好的气氛).bycreatingaple
HappinessandSadnessA)Happinessandsadnessaretwomo
PolicemanasaWriterIdecidedtobegintheterm’sworkwithth
A. B. C. D.
大戟、商陆、甘遂、芫花常用的炮制方法是A.泡漂 B.酒炙 C.盐炙 D.醋
癌肿转移引起淋巴结肿大的以下特征中,哪项是错误的A.质地坚硬 B.无压痛 C
变电站现场运行通用规程中的智能化设备部分()编制成册,但各智能变电站现场运行
25、加强运行、检修人员的专业培训,严格执行操作票、()制度,并使两票
下列不属于大额可转让定期存单的特点的是()。A.不记名且可转让 B.一般
涌水段施工采用辅助坑道排水时应符合的要求有()。A.坑道应和正洞平行或接近平行
最新回复
(
0
)