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
Another thing an astronaut has to learn about is eatingin space. Food is weightless, just as men are. Food for space has to
Another thing an astronaut has to learn about is eatingin space. Food is weightless, just as men are. Food for space has to
admin
2016-04-30
34
问题
Another thing an astronaut has to learn about is eatingin space. Food is weightless, just as men are.
Food for space has to be packed in special ways. Some of it goes into tubes that a man can squeeze into his mouth. Bite-sized cookies are packed in plastic.
There is a good reason for covering each bite, The plastic keeps pieces of food from traveling in the spaceship. On the earth very small pieces of food would simply fall to the floor. But gravity doesn’t pull them to the floor when they are out of the plastic in a spaceship. They move here and there and can get into a man’s eyes or into the spaceship’s instruments. If any of the instruments is blocked, the astronauts may have trouble getting safely home.
As astronauts travel on longer space trips, he must take time to sleep. An astronaut can fit himself to his seat with a kind of seat belt. Or, if he wants to, he can sleep in a sleeping bag which is fixed in place under his seat. But be careful he must put his hands under the belt when he goes to sleep. This is because he is really afraid that he might touch one of controls that isn’t supposed to be touched until later.
Why does an astronaut put his hand under his belt when he sleeps?
选项
A、Because he thinks it is comfortable to sleep in that way in space
B、Because he doesn’t want to touch any controls when he sleeps
C、Because the instruments of the spaceship are easily broken
D、Because he is afraid that the seat will move
答案
B
解析
事实细节题。文章最后两句提到,为了防止在睡眠中不小心触摸控制键,宇航员要将双手放在安全带下。
转载请注明原文地址:https://kaotiyun.com/show/H5RO777K
0
成人本科学位英语
相关试题推荐
(Sincethebeginning)ofthiscentury,moreandmorescientists(havebecome)inter-ested(in)(thewayhow)thehumanbrainwor
Tom:Iseeinthepaperthey’resendingmoreequipmenttospace.Andwemighthavetolivetheresomeday.John:______!I’msta
Itiswisetorememberthatyoudonothavetobuyanythingfromanysalesperson.Yououghttobuyonlythosethingsyoureally
Veryimportantpeopledon’toftenhavemuchfreetimeastheirwork______alltheirtime.
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolookat.Onlyrecently【C1】______cometo【C2】______s
A(Notuntil)mymothertoldmeB(thesadnews)lastnightC(didIknew)thatourneighborDr.LiD(waskilled)inacaraccident
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthedifferencebetweenmarketingandselling.Nottooma
LookattheterriblesituationIamin!IfonlyI______youradvice.
Perhapshemadesoundslikethoseheheardallroundhim--watersplashing,beeshumming,astonefallingtotheground.(Passage
71.Therewasabigpileofbricksonthetopofatallbuildingandamanhadtobringthemdowntotheground.Hehadalongr
随机试题
干燥热敏性物料时,为提高干燥速率,不宜采用的措施是()。
国家药监局下达文件,通报恒发药业公司生产的药品质量低劣由此导致经销商纷纷退货,使该公司产品大量积压,损失巨大下列说法中正确的是()
投资决策委员会是基金管理公司基金投资的最高决策机构,是非常设议事机构。()
下列选项所述证据中,属于行政诉讼所独有的法定证据的是()。
下列属于个人教育贷款借款人还款意愿风险的是()。(2011年)
物流信息在前端小幅度的波动会在后面产生很大幅度的波动反映的是物流信息的()特点。
阅读地震教学案例,回答问题。将电影《唐山大地震》根据教学需要分段剪切制作成多个微视频,辅助地震一节教学。(1)危害篇——名震一时活动一众说纷纭,观看电影唐山大地震片段,用语言表达地震的危害。活动二慧眼识真,根据电影唐山大地震片段、中国地震分布图、中
曾被()的人员不得担任人民警察。
设f(x)在(一∞,+∞)内可导,且对任意x1,x2,当x1>x2时,都有f(x1)>f(x2),则()
Whataretheytalkingabout?
最新回复
(
0
)