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
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
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
admin
2016-04-02
18
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【B1】______our protective blanket on earth. Light gets through, and this is【B2】______for plants to make the food which we eat. Heat, too, makes our environment【B3】______. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are【B4】______. As soon as men leave the atmosphere they【B5】______this radiation and their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to【B6】______in space. The unit of radiation is called "rem". Scientists have reason to think that a man can【B7】______far more radiation than 0.1 rem without being damaged: the figure of 60 rems has been agreed on. The trouble is that it is【B8】______difficult to be sure about radiation damage—a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high amounts of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short, we simply do not know yet how men are going to get on, when they spend weeks and months outside the protection of the atmosphere, working in a space【B9】______. Drugs might help to decrease the damage done by radiation, but no really【B10】______ones have been found so far.
【B10】
选项
答案
effective
解析
根据空格前的really以及空格后的ones,可推测此处需填形容词,与no really一起构成修饰ones的定语。effective意为“有效的”。
转载请注明原文地址:https://kaotiyun.com/show/JvL7777K
0
大学英语六级
相关试题推荐
ProductionoftheAmbassador,thefirstcartobemadeinIndia,hasbeenhaltedbecauseoffallingdemand.ModelledontheMorr
Emotionisafeelingaboutorreactiontocertainimportanteventsorthoughts.Peopleenjoyfeelingsuchpleasantemotionsasl
Britainmaynotalwayscheck【C1】______properly,butitissadlygoodaterectingotherbarriersinfrontofpeoplewhowanttov
Nomaterwhat,the"content-should-be-free"crowdsays,copyrighttheftrobsartistsandbusinessesoftheirlivelihoods.Creati
Itmayseemridiculous,butinthehuntforsourcesofalternativeenergyresearchershavecomeupwithfuelcellswhicharepow
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthecampus.Thenumerousadvertisingpostersandthego
A、Skiptheprofessor’sclass.B、Talkwiththeviolinist.C、Performinaconcert.D、Gotoenjoytheconcert.D对话中男士提到教授刚才谈论的著名小提琴
A、Americanliterature.B、Elementaryeducation.C、Psychology.D、Experimentalmedicine.B对话中女士问男士Areyoualsomajoringinelementa
A、Prof.Laurenceisgoingintoanactiveretirement.B、Prof.Laurencehasstoppedconductingseminars.C、Theprofessor’sgraduat
A、Walkingthedog.B、Cuttingthegrass.C、Watchingthechildren.D、Feedingthefish.C回答这道题,关键在于抓住一句话,即itisalittlelikebaby-
随机试题
当肺通气量不变时,深而慢的呼吸形式可使
女性,28岁,妊娠28周,1周来腰痛伴尿频,两天来低热,体温37℃,有时排尿后尿道口疼痛,检查尿结果为pH6.0,SG1.015,Pro0.3g/L,WBC22/μl,RBC8/μl,偶见白细胞管型/LP;尿培养为克雷伯杆菌。最先考虑的诊断是
血红蛋白合成的叙述,正确的是
承包人工程索赔成立的基本条件包括()。
下列子系统中,需要从账务处理系统读取数据的有()。
公司总体战略不包括()。
史学是一门实证的学问,凡事能证实即可。但实证的基础是史料,而实际遗留下来的史料,可能不过是原初材料的千百万分之一。古代史不用说,研究近现代史的人,常觉史料汗牛充栋,但真到了论证具体问题时,立刻产生“书到用时方恨少”之感,因此史料不足是史家始终面临的常态。然
在沙赫特和辛格的情绪唤醒模型中,对情绪产生起关键作用的因素是
关于盗窃罪的理解,下列哪一选项是正确的?()
最近实施的一项历史上最严格的禁止吸烟的法律,虽然尚未禁止人们在其家中吸烟,却禁止人们在一切公共场所和工作地点吸烟。如果这项法律得到严格执行,就会彻底保护上班人员免受二手烟的伤害。如果以下哪一项陈述为真,能最有力地削弱上述论证?
最新回复
(
0
)