首页
登录
职称英语
Another thing an astronaut has to learn about is eatingin space. Food is wei
Another thing an astronaut has to learn about is eatingin space. Food is wei
游客
2024-01-17
40
管理
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. [br] In what way is food for space packed?
选项
A、Very small pieces of food are put on the floor
B、Some of it is put into tubes
C、Small-sized cookies are packed in plastic
D、Both B and C
答案
D
解析
事实细节题。第一段的最后两句指出,一些食物被放在管子里,小饼干则被用塑料包装起来。
转载请注明原文地址:http://tihaiku.com/zcyy/3371121.html
相关试题推荐
除了英语,你最好再学一门外语。BesidesEnglish,you’dbetterlearnanotherforeignlanguage.
______productionupby60%,thecompanyhashadanotherexcellentyear.A、AsB、Fo
______bythebeautyofnature,thegirlfromLondondecidedtospendanothertw
______theprogram,theyhavetostaythereforanothertwoweeks.A、Notcompletin
Takethisboxand______youcanfindenoughspace.A、putitwhichB、putupitwhic
A:Whatasurprise!Youchangedyourhairstyle.B:Yes,andanothersurprise.I’m
Tom:Iseeinthepaperthey’resendingmoreequipmenttospace.Andwemightha
SpeakerA:Thisappletastesnice.CouldIhaveanotherone?SpeakerB:______A、
Thetwopartieshaven’treachedanyagreement,butdecidedtosetanotherdate
Theyarebuildingthedamin______withanotherfirm.A、comparisonB、associationC
随机试题
Weallknowthatamagiciandoesnorreallydependon"magic"toperformhi
Theword"foolish"inthefirstparagraphprobablymeans______.[br]Thedining
VocationalSchoolsTheuniversitiesarenotabletomeetallthe【T1】____
A.慢性羊水过多 B.胎膜早破 C.急性胎儿窘迫 D.羊水过少 E.急性
浙江海运方面,()之间每天都有多班客轮往返,形成了中国最为繁忙的海上客运“金三角
为防止小鼠骨髓瘤细胞株返祖,应在培养基中定期加入下列何种物质A:8-氮鸟嘌呤B
原发PCO2降低A.代谢性酸中毒B.代谢性碱中毒C.急性呼吸性酸中毒D.急性呼吸
若一经济体从国外获得的要素收入多于该经济体向国外支付的要素收入,则GNI>GDP
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
下列建设工程项目投资中,属于动态投资的是( )。2016A、建设期利息 B
最新回复
(
0
)