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
2018-09-25
41
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/PR3O777K
0
成人本科学位英语
相关试题推荐
—______leaveattheendofthismonth.—Idon’tthinkyoushoulddothatuntil______anotherjob.
Beyond______stars,thetwoastronautscouldseenothingbut______space.
A:Whatasurprise!Youchangedyourhairstyle.B:Yes,andanothersurprise.I’mgoingtogetmarriednextSaturday.A:______.
AIdidn’tmindtheircomingBlatetothelecture,butICobjectedtheirmakingDsomuchnoise.
Thetwopartieshaven’treachedanyagreement,butdecidedtosetanotherdatefor______talks.
Onemusttryhisbestto______tothenewenvironment.
Thankstothemeansofmoderntransportationandcommunication,theworldisgettingsmaller.Thewholeworldcommunityappears
Thankstothemeansofmoderntransportationandcommunication,theworldisgettingsmaller.Thewholeworldcommunityappears
随机试题
冰雪道路对安全行车的主要影响是________。
中心静脉压(CVP)监测
A.≤5cfu/m2B.≤10cfu/m2C.≤15cfu/m2D.≤200cfu/m2E.≤500cfu/m2供应室无菌区空气的细菌监测标准()
牧区养犬不注意饮食卫生有可能感染
A.疏肝B.止痉C.升阳D.解毒E.清肺薄荷除疏散风热外,又能()
技术资料及图纸不包括()。
Theearth,ourhome,isveryimportancefor【M1】__________allofus.Nobodycanlivewithher.And【M2】__________ifwelovehe
“民主有利于促进和谐。专断有利于提高效率。”你如何理解这句话?
Inthelate1960’s,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
TheeconomyoftheUnitedStatesafter1952wastheeconomyofawell-fed,almostfullyemployedpeople.Despiteoccasionalalar
最新回复
(
0
)