首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The Chinese fairy story Flying to the Moon now turns to be true, with China【C1】______the country’s second unmanned lunar probe,
The Chinese fairy story Flying to the Moon now turns to be true, with China【C1】______the country’s second unmanned lunar probe,
admin
2013-04-08
54
问题
The Chinese fairy story Flying to the Moon now turns to be true, with China【C1】______the country’s second unmanned lunar probe, Chang’e 2 on 1st October, 2010. This mission marked another step for China’s pursuit of moon exploration. In fact, people all over the world have been and are【C2】______developing technologies for the exploration of deep space and the peaceful use of outer space, as space is actually 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【C3】______our protective blanket on【C4】______. Light gets through, and this is essential【C5】______plants to make the food which we【C6】______. Heat,【C7】______, makes our environments tolerable and some ultraviolet rays (紫外线的) penetrate the【C8】______. Cosmic (宇宙的) rays of various kinds come【C9】______the air from outer space, but【C10】______quantities of radiation from the sun are screened off.【C11】______men leave the atmosphere they are【C12】______to this radiation; 【C13】______their spacesuits or the walls of their spacecraft, if they are inside, 【C14】______prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in【C15】______. Doses of radiation are measured in【C16】______called "rents (雷目)". We all【C17】______radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The "【C18】______" dose of radiation that we receive each year is about two millirems; it【C19】______according to where you live, and this is a very rough estimate. Scientists have reason to think that a man can【C20】______far more radiation than without being damaged; the figure of 60 rems has been agreed.
【C16】
选项
A、pieces
B、units
C、parts
D、elements
答案
B
解析
语法知识。本句意为“射线的多少可以以雷目这个测量单位进行测量”。本题中,measure意为“测量”,其后应紧跟“用……单位测量”,故unit(单位,单元)正确。element意为“元素”,part意为“部分”,piece意为“碎片”,这三个选项均不符合题意。
转载请注明原文地址:https://kaotiyun.com/show/w3r7777K
0
大学英语四级
相关试题推荐
Peopletendtohavecontradictoryattitudesaboutloudnoise.Ontheonehand,theymayenjoylisteningtoloudrockmusic.Att
Stressmaybedefinedasanemotional,intellectual,orphysicalreactiontochangeordemands.Thestressreactionpreparesthe
Stressmaybedefinedasanemotional,intellectual,orphysicalreactiontochangeordemands.Thestressreactionpreparesthe
The"standardofliving"ofanycountrymeanstheaverageperson’sshareofthegoodsandserviceswhichthecountryproduce.A
Thegovernmentcontinuesto__________(倾注上百万资金)thedevelopmentofthewestpart.
A、Alltheyearround.B、Onlyinthesummer.C、Onlyduringthewintermonths.D、Onlyinthespringandautumn.AWhencantourists
Whydopeoplesmoke?Onereasonisthatpeoplebecome【B1】______tocigarettes.Tobeaddictedmeansthatyourbodycomeston
Whydopeoplesmoke?Onereasonisthatpeoplebecome【B1】______tocigarettes.Tobeaddictedmeansthatyourbodycomeston
Whydopeoplesmoke?Onereasonisthatpeoplebecome【B1】______tocigarettes.Tobeaddictedmeansthatyourbodycomeston
Therearetwomethodsoffighting,theonebylaw,theotherbyforce;thefirstmethodisthatofmen,thesecondofbeasts;bu
随机试题
合同台账主要有()。
关于饰面板(砖)工程材料技术要求的说法,正确的有()。
牛腿设计的主要内容是什么?
利多卡因与普鲁卡因比较不具有以下哪个特点
采用(),坝块浇筑的先后程序须受一定的限制,必须是上游块先浇,下游块后浇。
关闭一个活动的应用程序窗口,可以使用快捷键()。
过境的不需要办理检疫审批和过境检疫手续。()
农村信用社改革的三大目标是()。
LanguageContextandEnglishTeachingI.Themeaningsoflanguagecontext1.Generallyspeaking:itcanbedividedintosituati
Pleasepardon______you.
最新回复
(
0
)