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
2024-01-15
21
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] 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://tihaiku.com/zcyy/3364175.html
相关试题推荐
Linda,_______haslivednextdoortomeabout10years,willmovetoanothercit
Onecarwenttoofastandmissedhittinganothercar.A、completelyB、greatlyC、na
W:Theexperimenthasbeencompleted,hasn’tit?M:______A、Yes.Weneedanother
Onenteringanothercountry,atouristwillhaveto______theCustoms.A、passth
SpeakerA:Wouldyoucareforanotherhelping(还要再吃点东西吗)?SpeakerB:________A、I
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
随机试题
Today,therearemanyavenuesopentothosewhowishtocontinuetheireduca
[originaltext] (16)Handwritinghasbecomeadyingart,nowthatkidsstartus
施拉姆等人在《报刊的四种理论》中认为最理想的新闻理论和制度是()A.自由主义理论
以下关于测试时机的叙述中,正确的是( )。A.应该尽可能早的进行测试 B.若
治疗心室纤颤的最有效措施是A.电除颤 B.镇静 C.吸氧 D.气管内滴注肾
女性,40岁,痰结核菌阳性的肺结核患者,考核疗效的主要指标是A.胸片病灶好转
气营两燔的舌象是A.红瘦舌,黑苔 B.绛舌,薄白苔 C.绛舌,黄白苔 D.
2017年我国成年国民图书阅读率为59.1%,比上年增加0.3个百分点;报纸阅读
对企业财务部门资金利用状况的分析属于( )。 A.全面分析 B.部门
A.5min B.15min C.30min D.45min E.60m
最新回复
(
0
)