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
2024-01-24
39
管理
问题
(22)A few degrees can make a big difference when it comes to food storage. Food can so 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 (黏土). 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、People who eat spoiled food may get sick.
B、Farmers have to throw away spoiled products.
C、Farmers have to sell the spoiled products quickly at a low price.
D、People need money to dispose of the spoiled food.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3390175.html
相关试题推荐
ThereisabigdifferenceaboutthedietsbetweenNorthernandSouthernChin
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpic
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
随机试题
InthispartoftheReadingsection,youwillread2passages.Youwillhave
Makesuretheironisn’ttoohot______you’llburnthecloth.A、andB、orC、yetD、s
Ahappymarriageapparentlyisgoodmedicine,buthostilespousesmaybehar
有权宣告公民死亡的机关是()A.人民法院 B.公安局 C.人民检察院
A.伤后彻底清创、改善局部循环 B.控制和解除痉挛、预防窒息 C.使用破伤风
某新建学校选址在城市道路一侧,其附近原有公共停车场,则学校的出入口距停车场出入口
对正常贷款计提普通准备金时,确定计提基数的方法不包括( )。A.在贷款风险分类
站用变在额定电压下运行,其二次电压变化范围一般不超过-5%~+()%
小明,12岁,小学六年级,11岁时被父母从老家接回上海,同父母一起居住。最近小明
以下不属于系统性风险的足()。A:利率风险 B:汇率风险 C:政策风
最新回复
(
0
)