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
41
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
Ifyoucouldgoonvacationasanyoneyouwanted,whowouldyouchoose?Joel
[originaltext]Everydaydressisappropriateformostvisitstopeoples’hom
以挡土墙作为支挡构造物时,()多用于具有较完整岩石地段的路堑边坡支挡。A.
高分子防水卷材试样热老化处理试验程序,80℃±2℃的温度下恒温14d,标准环境调
慢性阻塞性肺疾病肺脾气虚证治疗宜首选A.补肺汤加减 B.小青龙汤加减 C.补
以下关于经济分析方法的发展趋势,表述正确的是()。A:在传统的观念中,经济分析
李杰是某社会服务机构的领导,在平时的工作中,他要求员工必须了解组织的工作方向和目
下列叙述正确的是A.白细胞均是有粒细胞 B.单核细胞为有粒细胞 C.淋巴细胞
共用题干 患者,女,18岁。右下颌膨隆畸形2年,无疼痛。如果检查见右下颌骨膨隆
作为低压电动机的保护电器,主回路低压断路器过电流脱扣器的选择应符合().A.
最新回复
(
0
)