首页
登录
职称英语
The best title for this selection is ______. [br] [originaltext] Do you kno
The best title for this selection is ______. [br] [originaltext] Do you kno
游客
2024-10-09
29
管理
问题
The best title for this selection is ______. [br]
Do you know how astronauts act while whirling through space? Their food comes in plastic tubes, and they eat it from the tubes. Why? Spacecraft food must be light and easy to store. It must also be non-spoilable. Many of the foods made for eating in a spaceship have been a success. In fact, everyone may soon be able to have them!
Scientists have learned to keep some foods from spoiling by removing the oxygen from them. This is done by pumping nitrogen gas into them, forcing nearly all the oxygen out. Without oxygen, bacteria cannot grow, nor can the foods spoil.
(12[D])Freeze-drying is another way to keep food from spoiling. First the foods are frozen. Then they are dried. Fruits, vegetables, meat, and even ice cream can be freeze-dried. Years later, you can just add milk or water, and they’re ready to be eaten. And freeze-dried foods need no refrigeration!
(13[A])Besides non-spoilable foods, scientists can now make foods from non-food materials. Coal, gas, and other nonfoods have been turned into foods. By treating these materials with bacteria, scientists can produce rich proteins.
Experts say that four out of five of the world’s people do not eat enough protein. Man-made proteins could help people in needy areas. But it should be a long time before we sit clown to a bowl of coal and a glass of gas.
选项
A、foods from non-food materials
B、foods in plastic tubes
C、freeze-dried foods
D、eatable food packages
答案
A
解析
细节题。本文谈到:现在,科学家可能make foods from non-food materials。之后又说缺粮地区的人们可以吃人造蛋白质,从而解决粮食短缺问题,因此,本题选A 。
转载请注明原文地址:https://tihaiku.com/zcyy/3793226.html
相关试题推荐
Whydoesthewomanfeelbettertoday?[br][originaltext]M:Whyareyouinsuch
Whydoesthewomanfeelbettertoday?[br][originaltext]M:Whyareyouinsuch
Inthissurvey,wecangetallthefollowinginformationEXCEPT[originaltext]
Whatdotheresearchersfindaboutmessydesks?[br][originaltext]Managers
Whatdotheresearchersfindaboutmessydesks?[originaltext]Managersmight
Howdidthemanspendhisvacation?[br][originaltext]W:Welcomeback!Howwas
Howdidthemanspendhisvacation?[br][originaltext]W:Welcomeback!Howwas
Howdidthemanspendhisvacation?[originaltext]W:Welcomeback!Howwasyour
Whatisthewoman’sattitudetohernewjob?[br][originaltext]M:Whatanice
Whatisthewoman’sattitudetohernewjob?[originaltext]M:Whataniceunifor
随机试题
QuestionandAnswerChoiceOrderThislectureisapart
InAmericaalone,tippingisnowa$16billion-a-yearindustry.Consumersac
某高速公路分路基、路面两期施工,路面为沥青路面。第一期工程某路基施工合同包括7座
小章原来认为“教学心理”就是研究知识掌握和技能形成的,后来要让他认识到“认识策略
电力系统中的电力线路数学模型就是以()表示它们的等值电路A.电阻B.电
A. B. C. D.
应急备战管理是贯彻()方针的一个具体内容,也是及时扑救初期火灾、减少火灾损失的
下列关于组合风险限额管理的说法,正确的有()。A.任何情况下都不允许超过组
个人汽车贷款的贷后档案管理的内容不包括()A:档案的收集整理和归档登记B:档案
商品归类题 猴枣(2001年)()
最新回复
(
0
)