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
2022-10-01
107
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.
Why are bullocks used to provide energy in India?
选项
A、Because bullocks have long been used by Indian people.
B、Because bullocks walk slowly and are easy to control.
C、Because there are few non-working bullocks in India.
D、Because there is not enough oil in India.
答案
D
解析
原文第一段第四、五行“Indian energy officials have been seeking…to provide energy.”。细节题。根据“Indian energy officials have been seeking…to provide energy.”可以看出印度用来发电的石油主要靠进口,所以可推测出印度本国的石油是匮乏的。因此D项正确,A、B、C项均不能用来解释用小牛发电的原因。故选D。
转载请注明原文地址:https://kaotiyun.com/show/BbcD777K
0
成人本科学位英语
相关试题推荐
Skepticsofhighereducationoftencomplainthatuniversitiesoffertoomanyboringdegreeswithlittlevalueintheworkplace.【
Howseriouslyshouldparentstakekids’opinionswhensearchingforahome?Inchoosinganewhome,CamilleMcClain’skidsh
[A]Besilly[B]Havefun[C]Expressyouremotions[D]Don’toverthinkit[E]Beeasilypleased[F]Notice
HarlanCobenbelievesthatifyou’reawriter,you’llfindthetime;andthatifyoucan’tfindthetime,thenwritingisn’tap
It’sdifficulttoimagineaworldwithoutantibiotics.Theycurediseasesthatkilledourancestorsincrowds,andenableanynu
Peekthroughtheinspectionwindowsofthenearly100three-dimensional(3D)printersquietlymakingthingsatRedEye,acompany
Peekthroughtheinspectionwindowsofthenearly100three-dimensional(3D)printersquietlymakingthingsatRedEye,acompany
Scientistshavediscoveredapowerfulantibioticinthebloodstreamofgiantpandasthatcandestroybacteria.TheChineserese
AlbertEinstein,whosetheoriesonspacetimeandmatterhelpedunravelthesecretsoftheatomandoftheuniverse,waschosen
Austerityisawordoftenfoundonthelipsofpoliticiansandeconomistsatthemoment,butitisseldomheardfromtechnologis
随机试题
A.浆细胞B.单核细胞C.嗜碱性粒细胞D.嗜酸性粒细胞E.中性粒细胞具有抗过敏作用的是
A.以病人作为受试对象的试验B.以人作为受试对象的试验C.人体实验时必须要做到真正的知情同意D.选择受试者的时候需遵循的E.保障受试者身心安全人体实验的核心宗旨是
经济全球化本质上是资源配置的全球化,其内容大体可以分为()
关于临界点,下列说法错误的是( )。
证券公司在证券承销过程中没有自营买卖。()
模糊性比较高的工作任务,()。
下列情形中,税务机关有权核定纳税人应纳税额的有()。
处在黄河下游的是()文化。
2008年以来,次贷危机引发的金融危机愈演愈烈,迅速从局部发展到全球,从发达国家传导到新兴市场国家和发展中国家,从金融领域扩散到实体经济领域,酿成了一场历史罕见、冲击力极强、波及范围很广的国际金融危机。根据形势发展变化,中央果断采取一系列进一步扩大内需、促
下列表单的哪个属性设置为真时,表单运行时将自动居中( )。
最新回复
(
0
)