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
Jackson: Viewed from a scientist’s standpoint, all of the energy contained in fuel either now or in the future becomes heat.
Jackson: Viewed from a scientist’s standpoint, all of the energy contained in fuel either now or in the future becomes heat.
admin
2022-09-23
55
问题
Jackson:
Viewed from a scientist’s standpoint, all of the energy contained in fuel either now or in the future becomes heat. Some of the heat is used directly or produces useful work. The rest is lost or rejected. That is to say, it is radiated into the atmosphere from the engines, motors, furnaces, power lines, television sets, boilers and all the other energy-consuming machinery that makes our wheels go around.
Browning:
It is necessary to improve the efficiency with which we use energy in order to do more work. But improvement cannot come overnight, and there are limits beyond which not even science can help. According to the Center for Strategic and International studies, about three quarters of the energy we use to move things, including ourselves, accomplishes no useful work.
Jeffrey:
In terms of efficiency, buses, trains, and other forms of public transportation may be using energy more efficiently than private automobiles. Unless private automobiles can operate at near capacity, their overall efficiency is poor. For example, an urban bus carrying 36 passengers may achieve an efficiency of around 120 passenger-miles per gallon of gasoline. But buses are not always fully loaded, and sometimes they carry no passengers at all.
Vandenberg:
It is true that buses can sometimes run without passengers. City trains seem to be very efficient, but they suffer the same shortcomings as buses and cost more. Except for rush hours, commuter trains seldom run at full capacity. This wastes even more energy and is more than the management can afford. As a result, commuter trains are truly practical only in places where there are a lot of people.
Nathan:
For some people, mass transportation may serve their needs. For others, a combination of mass transportation and private transportation may be preferable. Better design and wise use of both mass transportation systems and private vehicles will play an important part in helping us make fuller use of energy for transportation.
Now match the name of each person to the appropriate statement.
Note: there are two extra statements.
[A] Public transportation is usually more energy-efficient.
[B] City trains and buses have different faults to overcome.
[C] The efficiency of the city train depends on the size of population.
[D] No fuel energy is fully used.
[E] A combined means of transport can help to increase energy efficiency
[F] Problems of energy loss can never be completely solved.
[G] Private cars usually run at full capacity.
Vandenberg
选项
答案
C
解析
Vandenberg的观点主要体现在最后一句话“As a result, commuter trains are truly practical only in places where there are a lot of people. ”即“载上下班乘客的列车只有在人很多的地方才真正实用”。说明城市火车是否实用取决于人口的多少,这与C选项“城市火车的效率取决于人口的大小”表述相符,故C为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/AVNd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Scientistsfindthathard-workingpeoplelivelongerthanaveragemenandwomen.Careerwomenare【C1】______thanhousewives.Evid
InBritain,winteristheseasonnotonlyforvisitstothetheatre,opera,concertsandballet,butalsoforshoppingorforsi
InBritain,winteristheseasonnotonlyforvisitstothetheatre,opera,concertsandballet,butalsoforshoppingorforsi
Howdoesthemanfeelaboutthecourse?
Readthetextsfromamagazinearticleinwhichfivepersonstalkedabouttheirattitudetohelpingthepeopleindevelopingcou
Asmywifegreetedmeoneevening,hervoicecamethroughthedoor,"Guesswhat?"Ialwaystakeadeep【C1】______onthisvery
Whatcanbeinferredaboutthewomanwho’sspeaking?
What’sthemainpurposeofthistalk?
InBritain,peoplehavedifferentattitudestothepolice.Mostpeoplegenerally【C1】______themandthejobtheydo—althoughther
Playistheprincipalbusinessofchildhood,andmoreandmoreinrecentyearsresearchhasshownthegreatimportanceofplayi
随机试题
给定资料: 1.世界经济的迅猛发展带来了诸如资源短缺、环境污染、臭氧层被破坏、全球气候变暖、生态失衡等一系列世界性的环境恶化问题。同时,随之而来的环境污染对食物的危害,使人们认识到环境污染、自然生态系统失衡,最终将危及人类自身的生存和发展。许多国际环境公
因社会总支出和产出下降引起的失业称为()
对排列图的观察与分析,通常把累计百分数在80%~90%之间划为B类因素,B类因素是指( )。
某单层仓库内储存有大量同一规格玻璃工艺制品,该工艺品均选用木箱包装,包装后的成品每箱重量为30kg,其中木箱的重量为6.5kg。该仓库的火灾危险}生类别应确定为()。
按计划成本分配法的特点是()。
简述知识概括的类型。
关于创造力与智力的关系,下列哪种表述是正确的()(烟台龙口)
自由:放纵
选择合适的相关系数必须考虑()
A、Theofficeistoonoisytoworkin.B、Toomanystudentsaskquestionsintheoffice.C、Theycan’tpreparetheircoursesadequa
最新回复
(
0
)