首页
登录
职称英语
[originaltext] (22)A few degrees can make a big difference when it comes to
[originaltext] (22)A few degrees can make a big difference when it comes to
游客
2024-01-31
62
管理
问题
(22)A few degrees can make a big difference when it comes to food storage. Foods can go bad if they get too warm. But for many of the world’s poor, finding a good way to keep food cool is difficult. Refrigerators are costly and they need electricity.(23)Yet spoiled food not only creates health risks but also economic losses. Farmers lose money when they have to throw away products that they cannot sell quickly. But in 1995, a teacher in northern Nigeria named Mohammed Bah Abba found a solution. He developed the " Pot-in-Pot Preservation" or " Cooling System". It uses two round containers made of clay(泥土). A smaller pot is placed inside a larger one. The space between the two pots is filled with wet sand. The inner pot can be filled with fruit, vegetables or drinks. A wet cloth covers the whole cooling system.(24)Food in the smaller pot is kept from spoiling through a simple evaporation process. Water in the sand between the two pots evaporates through the surface of the larger pot, where drier outside air is moving. The evaporation process creates a drop in temperature of several degrees. This cools the inner pot and helps keep food safe from harmful bacteria. The invention became popular with farmers in other African countries.(25)Mohammed Bah Abba personally financed the first 5.000 pot-in-pot systems for his own community and five villages nearby. In 2000, the Rolex Watch Company of Switzerland honored him with the Rolex Award for Enterprise. This award recognizes people trying to develop projects aimed at improving human knowledge and well-being.
22. What is an important factor in food storage?
23. Why does the speaker say spoiled food can create economic losses?
24. How does the pot-in-pot system work?
25. What can we learn about Mohammed Bah Abba?
选项
A、Pot using.
B、Wet cloth.
C、Sand.
D、Temperature.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3410594.html
相关试题推荐
[originaltext]Inthenextfewdecades,peoplearegoingtotravelverydiff
[originaltext]Fortwenty-fiveyears,Iwasafull-timethief,specializing
[originaltext]Fortwenty-fiveyears,Iwasafull-timethief,specializing
[originaltext]"Gototheplaygroundandhavefun",parentswilloftensayt
[originaltext]Doyourememberatimewhenpeoplewerealittlenicerandge
[originaltext]Doyourememberatimewhenpeoplewerealittlenicerandge
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]Beethovenprobablybegantogodeafin1797,buthetriedto
随机试题
[originaltext]Let’sturnourfocusnowtoadvertising.Weallknowwhatan
Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReading
Thecompanysaysthehomesarefarmoreefficientthanconventionalhousesandu
系统论的基本原则是( )A.区别性 B.整体性 C.合理性 D.联系性
我国的人口数据都是采用普查的方式获取的。( )
某女,8岁,右侧腮部以耳垂为中心肿起,边缘不清,皮色不红,局部灼热疼痛,此为(
甲公司只生产一种产品,2013年产品销售单价为20万元,边际贡献率为50%,固定
可用于治疗青光眼的药物是A.普萘洛尔 B.毒扁豆碱 C.新斯的明 D.去氧
因装修需要,拟在边长为2m的正方形浴室正中央处安装圆形淋浴喷头,喷头直径为10c
公开发行股票数量少于5亿股的,配售数量不超过本次发行总量的10%;公开发行股票数
最新回复
(
0
)