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
50
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、He sold his invention to make money.
B、He preferred invention to teaching.
C、He was honored with an award for his teaching methods.
D、He financed 5 000 pot-in-pot systems to help people.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3390177.html
相关试题推荐
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpic
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpic
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[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]Asinglecigarettesoldonastreetcornermaynotcostalot:
随机试题
生产经营者通过套期保值并没有消除风险,而是将其转移给了期货市场的风险承担者即()。A、期货交易所B、其他套期保值者C、期货投机者D、期货结算部门
[originaltext]W:Goodmorning,Mr.Pitt.Dositdown.M:Thankyou.W:Firstof
女,56岁,身高160cm,体重68kg,高血压病史16年,时有头晕、头痛等不适
男,40岁,患糖尿病10余年,尿蛋白阴性,近1个月感下腹部胀,排尿不畅伴尿失禁。
以下属于客户证券投资目标中的短期目标的是()。 Ⅰ.存款 Ⅱ.购新车
A.自然铜 B.赭石 C.雄黄 D.煅炉甘石 E.生石膏呈不规则的小块,
(2018年真题)有限合伙人可以将其在有限合伙企业中的财产份额出质,合伙协议另有
不可抗力导致的人员伤亡、财产损失、费用增加和(或)工期延误等后果,由承包人承担的
人防战时电力负荷分级,下列哪些条件符合二级负荷规定?()A.中断供电将造成人员
2008年,吉林省内B县医疗机构发现该县发生重大食物中毒事件。该县级人民政府卫生
最新回复
(
0
)