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
Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or oth
Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or oth
admin
2012-09-11
86
问题
Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuels. It produces electricity with the power of animals. India has about eighty million bullocks (小牛). They do all kinds of jobs. They work in the fields. They pull vehicles through the streets. They carry water containers. Indian energy officials have been seeking ways to use less imported oil to provide energy. Scientists at the National Institute for Industrial Engineering in Bombay (孟买) wondered whether the millions of bullocks could help. Many villages in India lack electricity, but they have many bullocks. And often the animals are not working. One job done by bullocks is to pump water out of the well. The animals do this by walking around and around in a circle. As they walk, they turn a heavy stick that makes the pump move. This simple technology is centuries old. Scientists thought that the same technology could be used to produce electricity. Bullocks walk in a circle only two or three times a minute. This is much too slow to produce electricity, but it can create enough power to turn a series of gears (齿轮). A large gear sits next to a smaller gear. As the large gear turns, it causes the smaller gear to turn. That gear turns an even smaller one. Each gear moves faster because it is a little smaller. The smallest gear may turn extremely fast. Clocks operate with gears. So do cars and so does the device invented by the Indian scientists to produce electricity.
According to the officials in the United Nations, the idea is being tested at several places in India. The device is easy to operate and repair. And it can be moved easily. It costs about three hundred and seven dollars now to make such a device, but production of large numbers of them could cut the cost of each to about two hundred dollars.
Which of the following is true about the device mentioned in the passage?
选项
A、It has a large gear and a smaller gear.
B、It’s easy to use, but difficult to move.
C、It’s quite cheap.
D、It’s still being tested.
答案
D
解析
本题是推断题。问关于文章讲的这种设备,哪项是正确的。根据文章第一段结尾处和第二段,可以知道A、B两项与文章意思相反。C项关键是看到quite这个词,是“完全,彻底”的意思,比较绝对,因此排除。所以选D。
转载请注明原文地址:https://kaotiyun.com/show/MbDO777K
0
成人本科学位英语
相关试题推荐
Thenewly-electedpresidentisdeterminedtogo______theestablishedpolicyofdevelopingagriculture.
Thebridge______aftertheherowhogavehislifeforthecauseofthepeople.
Theywillcontinue______sevendaysaweekuntilthebuildingisfinished.
Tomandhistwinbrotherdonotagreeonthematter,buttheyhavea______respectforeachother’sopinions.
Thefaceofthe21stcenturyisalreadygrowinginalaboratory.Gettingapieceofthenewlookcouldsoonbeassimpleaswrit
Theideaofbuilding"NewTowns"toabsorbgrowthisfrequentlyconsideredacure-allforurbanproblems.Itiswronglyassumed
Theideaofbuilding"NewTowns"toabsorbgrowthisfrequentlyconsideredacure-allforurbanproblems.Itiswronglyassumed
AttheKyotoconferenceonglobalwarminginDecember1997,itbecameabundantlyclearhowcomplexithasbecometoworkoutint
"Cultureshock"occursasaresultoftotalimmersioninnewculture.It【C1】______to"peoplewhohavebeensuddenlytransplanted
Humanwantsseemendless.Whenastarvingmangetsameal,hebeginstothinkaboutanovercoat;whenanexecutivegetsanewsp
随机试题
当全球一体化的压力低、当地化的压力低时,跨国企业将采取()的竞争策略。
甲因涉嫌私分国有资产罪被检察机关依法逮捕,在侦查期间,甲想找一个律师,下列说法正确的有:()
某项目部对承建的重力式方块码头进行安装施工。问题:标准中对方块安装有什么强制性规定?
银行风险管理流程包括的环节有()。
一旅游团于某日18时入住饭店后,地陪要做好()等工作。()
教育学研究的任务是()。
最近,一位历史学家在研究的过程中,发现了两份提到同一个人——ErichSchnitzler的资料,其中一份标明的日期是1739年5月3日,是一份Schnitzler由于未经允许沿街叫卖而被逮捕的记录。第二份未标明日期,是一份Schnitzler宜称他已经
学生教学管理系统、图书管理系统都是以______为基础和核心的计算机应用系统。
TheImpactofWildernessTourismA)Themarketfortourisminremoteareasisboomingasneverbefore.Countriesallacrossthew
Twotypesoftestsarecommonlyusedinmodernschools.Thefirst【C1】______issometimescalledan"【C2】______"test.Itisinten
最新回复
(
0
)