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
57
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
Ithinkit______hightimethey______totakeyoumoreseriously.A、was,began
Manyoftheemployeesthinktheircareerpathbeginsduringtheiremployment
Whatamarvelousmealyouhavegivenus--areal______.A、feastB、celebrationC、
A. B. C. D.
某住宅楼由市政管网供水,服务压力为0.2MPa时,可供水至()。A.3层楼
患者,女,24岁。GP,孕40周,晚11时起宫缩为20~30秒/5~6分,4小时
Inimplementationofteaching,toarouse
下列选项中,符合所给一组图形的变化规律的是()。
工程网络计划的资源优化是指通过改变( ),使资源按照时间的分布符合优化目标。
急性胰腺炎时血清淀粉酶升高的规律为A.发病后2小时升高,12小时达到高峰 B.
最新回复
(
0
)