首页
登录
职称英语
Scientists in India have invented a new way to produce electricity. Their in
Scientists in India have invented a new way to produce electricity. Their in
游客
2024-01-17
37
管理
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. [br] 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
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://tihaiku.com/zcyy/3370400.html
相关试题推荐
Theheatthatisproducedbyburninggarbageisusedtoboilwater.(Passage2)
It’sreportedbysomescientiststhatphysicalsurroundings______people’semot
Theamountofheatproducedbythiselectricalapparatusis______atwillbytu
Afterthenewtechniquewasintroduced,thefactoryproduced______carsin2002
Hismanualofbotanyhasbecomea______amongscientists.A、masterpieceB、classic
______,somefamousscientistshavethequalitiesofbeingbothcarefulandcare
Hehastwochildren,______havebecomeworld-famousscientists.A、noneofwhoB、al
Theamountofheatproducedbythiselectricalapparatusis______atwillbyturn
Hismanualofbotanyhasbecomea________amongscientists.A、masterpieceB、classi
______theuniversecouldneverdiewasoncebelievedbyscientists.A、ForB、WhyC
随机试题
[originaltext]M:I’mreadytoleave.ShallIpoweroffthecomputernowandloc
TheDiscoveryofAstronomersThediscoveryofplanetsar
在《契约型私募投资基金合同内容与格式指引》《公司章程必备条款指引》《合伙协议必备
治疗崩漏实热证,应首选( )。A.保阴煎 B.固本止崩汤 C.清热固经汤
肝肾综合征时,肾血管收缩的原因不包括()。A.白三烯生成增加 B.内皮素-1
患者女性。孕1产1,由于滞产压迫致尿瘘,出现漏尿的时间多在A.分娩后立即出现
引起急性坏死性小肠结肠炎的致病菌为A:链球菌 B:葡萄球菌 C:大肠埃希菌
会计凭证按其( )不同,分为原始凭证和记账凭证。A.格式不同 B.填制手续和
在工程设计过程中,影响设计进度的因素主要有()。A.建设意图及要求改变的影响
A.中毒作用 B.变态反应作用 C.光感作用 D.致纤维化作用 E.致癌
最新回复
(
0
)