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
2023-11-11
41
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、always contain meat
B、need refrigeration
C、are dried and then frozen
D、last for a long time unspoiled
答案
D
解析
细节题。文章解释道:冻干技术是keep food from spoiling的另一种方法。故选D 。
转载请注明原文地址:https://tihaiku.com/zcyy/3178661.html
相关试题推荐
Whichofthefollowingisthebesttitleforthepassage?[originaltext]When
What’sthisnewsabout?[originaltext]AstudypublishedMondayfoundthatp
Whatkindofrobotsdoesthemanreferto?[br][originaltext]W:Hi,Paul,are
Whatkindofrobotsdoesthemanreferto?[br][originaltext]W:Hi,Paul,are
Whycan’tthespeakerssortouttheprogramnow?[br][originaltext]M:Couldwe
Whycan’tthespeakerssortouttheprogramnow?[br][originaltext]M:Couldwe
Whycan’tthespeakerssortouttheprogramnow?[originaltext]M:Couldwehave
Whathappenstotreeseachyear?[br][originaltext]Duringthiscentury,a
Whathappenstotreeseachyear?[originaltext]Duringthiscentury,archaeo
Whatisthewoman’sfavoritehobby?[br][originaltext]M:Hello!Youseemworri
随机试题
Manyjobshavebeenlostandtheymaynotbecomingback.Someoccupations
Whenthejobmarketworsens,manystudentsfiguretheycan’tindulgeinanE
CulturalDifferencesbetweenEastandWestI.Factorsleadingt
人力资源管理部门在组织职业生涯管理中的职责包括()。A.对员工的日常工作直接进
土方的边坡坡度一般以()表示,它影响到土方开挖边坡的稳定性。A.坡底宽度(h)
估算建设项目设备购置费时,可直接作为设备原价的是()。A.国产标准设备出厂
根据《公司法》的规定,公司股东依法享有的权利包括()。A.参与重大决策 B
炮制蟾酥所用的辅料为A.黄酒 B.白酒 C.苦酒 D.醋 E.
Thechangeinthatvillagewasmiraculou
下述关于长春新碱治疗ITP的说法,错误的是A.长春新碱是最常用的免疫抑制剂 B
最新回复
(
0
)