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
2024-01-26
65
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、By electricity.
B、Through an evaporation process.
C、Through a freezing process.
D、With the help of some special bacteria.
答案
B
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3395732.html
相关试题推荐
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
Afewdegreescanmakeabigdifferencewhenitcomestofoodstorage.Foods
[originaltext]M:WhatshouldIdoaboutMr.Romero?Remember?Hesaiditwasim
[originaltext]W:Steve,canyoutellmehowlongyou’vebeenapubowner?M:We
[originaltext]W:Steve,canyoutellmehowlongyou’vebeenapubowner?M:We
[originaltext]W:Steve,canyoutellmehowlongyou’vebeenapubowner?M:We
[originaltext]W:Steve,canyoutellmehowlongyou’vebeenapubowner?M:We
[originaltext]M:AceEmploymentAgency.Goodmorning.W:Goodmorning.Iwonder
[originaltext]M:AceEmploymentAgency.Goodmorning.W:Goodmorning.Iwonder
[originaltext]M:AceEmploymentAgency.Goodmorning.W:Goodmorning.Iwonder
随机试题
Whocantakepartineachoftheclasses?WritethecorrectletterA,BorCnex
TheancientAztecsveneratedthecacaotreeanduseditsbeansasaformof
OurproductsaredisplayedinStandB22,______youwillfindmeduringofficeh
没有哪个国家比中国对汽车更痴狂了,这里新成为中产阶层的人们的梦想就是拥有一辆闪闪发光的(shiny)新汽车。但仅仅有汽车对这些渴望超越中产阶层的人们是不
复合树脂充填,不宜用氧化锌丁香油糊剂垫底是因为A.影响树脂与牙粘接 B.抗压强
治疗咳嗽痰稠,鼻咽干燥,属燥热伤肺者,宜选用A、升麻 B、蔓荆子 C、薄荷
茶碱类药物需监测血药浓度的原因是A.易产生副作用B.在给常规剂量情况下,血药浓度
可引起明显干咳不良反应的药物是A.ace抑制剂 B.硝酸盐类 C.β受体阻滞
组合电器送电前必须(____)合格,各项(____)项目合格,各项(____)满
下列关于账户及其基本结构的表述中,不正确的是()。A:账户是根据会计科目设置的,
最新回复
(
0
)