首页
登录
职称英语
Space is a dangerous place, not only because of meteors (流星) but also because of
Space is a dangerous place, not only because of meteors (流星) but also because of
游客
2024-02-17
48
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. As 【C9】______ as 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 100 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】______ up with far more radiation
【C20】______ this 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
介词用法题,本句意为“各类来自太空的宇宙射线 ______ 大气层”,只有come through 与句意相符,在此相当于penetrate (穿透),所以D正确,come across 意为“偶遇”,come to 意为“来到”,come from 意为“来自”,均与句意不符
转载请注明原文地址:https://tihaiku.com/zcyy/3457369.html
相关试题推荐
[originaltext](32)Manyanimalsrecognizetheirfoodbecausetheyseeit.So
[originaltext](32)Manyanimalsrecognizetheirfoodbecausetheyseeit.So
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
Becausesomanypeopleintheirteensandearly20sareincreasinglysociali
[originaltext]W:Whydidn’tyouhaveyourphysicsclasstoday?M:Becauseonly
[originaltext]W:Whydidn’tyouhaveyourphysicsclasstoday?M:Becauseonly
[originaltext]W:Whydidn’tyouhaveyourphysicsclasstoday?M:Becauseonly
随机试题
ChildrenbornintoaBushmansocietyofSouthAfricaarecompletelydependen
Solongasteachersfailtodistinguishbetweenteachingandlearning,they
简述心理咨询与治疗中个案评估的内容要点以及伦理注意事项。
下面谱例出自德沃夏克的歌曲《母亲教我的歌》,其发展手法是()。 A.模进
俗话说“一条船不能有两个船长”。从管理的角度看下列解释最恰当的是:A.在领导班
Thechangeinthatvillagewasmiraculou
2012年,全国国内旅游人数29.57亿人次,比上年增长12.0%。其中,城镇居
下列选项中,属于信用风险的有()。A、某银行由于美元持续贬值,只是所拥有的1亿
针对由于总需求不足导致的失业与衰退局面,中央银行通常采取宽松的货币政策,其具体措
ECC合同的内容组成中,下列属于核心条款内容的有( )。A.补偿事件 B.所
最新回复
(
0
)