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
2023-11-06
8
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/3164655.html
相关试题推荐
Betweenwhomdidthebattlebreakout?[br][originaltext]AKosovanmanwa
FightingbrokeoutontraintoManchester______.[br][originaltext]Fifte
FightingbrokeoutontraintoManchester______.[originaltext]Fifteenpeo
Whatisthetalkmainlyabout?[br][originaltext]Thereisanartexhibiti
TechnoServeisanon-profitgroupthat[br][originaltext]Startingabusine
WhatdoesthemanworkonwithAnne?[br][originaltext]W:George,I’mwonderin
WhatdoesthemanworkonwithAnne?[br][originaltext]W:George,I’mwonderin
WhydidthewomangotoHongKong?[br][originaltext]M:Hi,Maggie!Haven’ts
WhydidthewomangotoHongKong?[br][originaltext]M:Hi,Maggie!Haven’ts
WhichisNOTtrueoftheman?[br][originaltext]Man:Oh,hello,LeeDong.Come
随机试题
CompaniesAreWorkingwithConsumerstoReduceW
Hardlyinmylife______suchathing.A、IexperiencedB、haveIexperiencedC、had
【教学过程】 (一)导入新课 教师播放视频,引导学生赏析,并思考通过观看视频中的人物的着装,大家能猜出他的职业是什么吗? 学生观察回答:潜水员;大家看,他
1.事故经过 某工程项目所在地块局部底下有市政管道。2014年1月24日上午,
乳腺纤维腺瘤好发部位是A.乳房内上象限 B.乳房外下象限 C.乳房外上象限
于( )。A.信天游 B.花儿 C.小调 D.号子
某建设工程项目施工前,业主方制定了工程款支付审批程序:施工方申报——监理方审批—
下列关于液体制剂的叙述错误的是A.非均相液体属于不稳定体系 B.非均相液体包括
认知行为矫正技术强调求助者必须( )。A、打破行为的刻板定势 B、
C
最新回复
(
0
)