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
29
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] 【C7】
选项
A、across
B、to
C、from
D、through
答案
D
解析
这里的come through相当于penetrate,穿透。come across“偶遇”;come to“来到”;come from“来自”。本句意思为:各类来自外部空间的宇宙射线穿透大气层……,故选come through。
转载请注明原文地址:https://tihaiku.com/zcyy/2835126.html
相关试题推荐
Insummer,manyNorthAmericansgotoEuropebyboatbecausetheyexpecttohave
【S1】[br]【S5】M下文...andsometimesdangerous.提示:连词and前也应当填一个形容词,而且应当是让人们感到不舒服之类的形
Wehadourtelephone______becausewedidn’tpaythebill.A、cutacrossB、cutdo
Oneofthemostdangerousdrugsforpregnantwomentoconsumeisalcohol.Be
Oneofthemostdangerousdrugsforpregnantwomentoconsumeisalcohol.Be
Oneofthemostdangerousdrugsforpregnantwomentoconsumeisalcohol.Be
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecauseof
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecauseof
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecauseof
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecauseof
随机试题
Chinahaslaunchedaseriesofactivitiesrecentlytopromotebookreadingh
[originaltext]KatherineGramgraduatedfromtheUniversityofChicagoin19
[originaltext]Watches,whichorereallysmallclocks,werefirstmadeduringth
不符合急性单核细胞性白血病细胞染色结果的是A.a-NAE:阳性.不被NaF抑制
女性,58岁,因剧烈呕吐,上腹痛1小时,急查血淀粉酶:1168U/L,首选的处理
医疗事故技术鉴定应由:A、医师学会负责 B、医学学会负责 C、医疗事故技术
去除药液中热原质的最好方法是A:蒸馏法 B:干烤法 C:滤过法 D:巴氏消
炎症时血管通透性增高是由于: A.内皮细胞间缝增大B.内皮细胞的变性坏死C.内
出口方所在地银行向出口商提供信贷,出口商向国外进口商提供延期付款销售,这种信用形
对于贯彻设计意图、严格实施技术方案、按图施工、循规操作、保证施工质量和施工安全至
最新回复
(
0
)