首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、People who eat spoiled food may get sick. B、Farmers have to throw away spoiled products. C、Farmers have to sell the spoiled pr
A、People who eat spoiled food may get sick. B、Farmers have to throw away spoiled products. C、Farmers have to sell the spoiled pr
admin
2020-02-09
19
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://kaotiyun.com/show/VNp7777K
0
大学英语四级
相关试题推荐
Lookingforanewweightlossplan?Trylivingontopofamountain.Mountainaircontainslessoxygenthanairatloweraltitud
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputerswork,justasweexpectthematleasttounderstand
A、Totakeatripallovertheworld.B、Tosparesomemoneyfortheirchildren.C、Tobeginanewlifeinwarmerweather.D、Tomov
A、Itisanimportantpartofinternationaleffortstoreducepoverty.B、Itisaprojecttoreducetheworld’spoverty.C、Itis
A、Itwillgoforoneyear.B、Itwillgoformorethantwoyears.C、ItalldependsonhowtheyshapeafterChristmas.D、Itwillg
A、Becauseofclimatechange.B、Becauseofthebuildingsaroundit.C、Becauseofhumanactivities.D、Becauseofanactofnature.
A、Heisthemanageroftheapartment.B、Heisthewoman’shusband.C、Heistheowneroftheapartment.D、Heisthewoman’sagent
Therewasatime,notthatlongago,whenwomenwereconsideredsmartiftheyplayeddumbtogetaman,andwomenwhowenttoco
HowsciencegoeswrongScientificresearchhaschangedtheworld.Nowitneedstochangeitself.[A]Asimpleideaunderlies
Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin
随机试题
两个内侧鼻突各形成一个水平方向的突起并在中线融合为一个整体,形成正中腭突,它演化为腭的大部分。
SARS的主要传播途径是
冷大马哈鱼()
非结算会员的客户充抵保证金的有价证券,由非结算会员提交期货交易所。( )
下列保险品种中,属于银行代理的财产险的有()。
下列各句中旬意明确的一项是()。
景区讲解员要预先了解来访游客所在地区或国家的宗教信仰、风俗习惯和禁忌。()
湖北军政府
在中国共产党的历史上,第一次鲜明地提出“马克思主义中国化”的命题和任务的会议是()
TheNavyiswarningshipstostayawayfromthecoastofSomaliaafteraseriesof_______attacksthere.
最新回复
(
0
)