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、The high temperatures required for its use. B、The lack of trained environmental engineers. C、The opposition of automobile manu
A、The high temperatures required for its use. B、The lack of trained environmental engineers. C、The opposition of automobile manu
admin
2010-10-14
72
问题
M: Hi Diana, mind if I sit down?
W: Not at all, Jack. How have you been?
M: Good. But I’m surprised to see you on the city bus. Your car in the shop?
W: No. I’ve just been thinking a lot about the environment lately. So I decided the air will be a lot cleaner if we all use public transportation when we could.
M: I’m sure you are right. The diesel bus isn’t exactly pollution free.
W: True. But they’ll be running a lot cleaner soon. We were just talking about that in my environmental engineering class.
M: What’s the city gonna do? Install pollution filters of some sort on their buses?
W: They could, but those filters make the engines work harder and really cut down on fuel efficiency. In stead they found a way to make their engines more efficient.
M: How?
W: Well, there is a material called coniine oxide. It’s a really good insulator. And a thick coat of it get sprayed on certain part of the engine.
M: An insulator?
W: Well, yeah. Actually, what it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely.
M: So a lot less unburned fuel comes out to pollute the air, right?
W: Yeah, and the bus will need less fuel. So with the savings on fuel oil costs, they say this will all pay for itself in just six months.
M: Sounds like people should all go out and get some of this stuff to spray on their car engines.
W: Well, it’s not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10,000 degrees and then, well, you get the idea. It’s not something you or I would be a ble to do ourselves.
选项
A、The high temperatures required for its use.
B、The lack of trained environmental engineers.
C、The opposition of automobile manufacturers.
D、The high cost of materials used in its production.
答案
A
解析
细节题。题干问的是限制coniine oxide用在私家车的原因是什么。从听力材料的最后女士的回答中,我们可知it’s not really that easy并且you first have to heat it over 10,000 degrees也即是需要有高温,选项A是对女士回答的同义转换。
转载请注明原文地址:https://kaotiyun.com/show/lPy7777K
0
大学英语四级
相关试题推荐
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
A、Menspendmorenightsintheirfriends’homethanwomen.B、Womenaremuchmoretalkativethanmen.C、Womenenjoymoreandbette
ImprovetheQualityofEducationToimprovethequalityofeducationcallsforimprovementinthequalityofeducationinal
A、Themovieisveryhorrible.B、Helikesthishorrormovie.C、Thismoviebroughthimgreatsurprise.D、Hedoesn’tthinkhighlyo
A、ThehistoryofBenjaminFranklin.B、ThehistoryoftheU.S.mail.C、TheChangesofwritingletters.D、ThehistoryofU.S.B本题
A、Shethinksthetimehaspassedquickly.B、Shethinksit’saftermidnight.C、Shedoesn’tbelievetheman.D、Shedoesn’tcarewh
Theinterestthatcreativedramaticsgeneratesinstudiesisitsmostobviousadvantage.Thefactthatchildrendevelop【C1】_____
Theinterestthatcreativedramaticsgeneratesinstudiesisitsmostobviousadvantage.Thefactthatchildrendevelop【C1】_____
A、Hecouldn’tagreewiththewoman.B、Heagreeswithwoman.C、HethinksPhilipiswisetodoso.D、HethinksPhilipshouldleave
Youcan’taffordtoletthesituationgetworse.Youmusttake______toputitfight.
随机试题
在新的历史条件下,加强和改进党的建设需要进一步解决的两大历史性课题是()。
运动后,外周动脉狭窄处的血流速度
高热烦躁,神昏谵语,项背强直,甚则角弓反张,舌质红绛,苔黄少津,脉细数,宜选用
柴胡、升麻均具有的功效是
在建设工程施工合同示范文本中,许多条款涉及“费用”这一术语,其含义是指( )。
出入库用运送机械存放取出,用堆垛机等设备进行机械化、自动化作业的高层货架仓库是指()。
维护网络安全任何国家都不能________,需要大力推动国际合作。应该在联合国主导下尽快制定和出台信息安全国际行为准则等基础性法律文件,以_________网络空间的国际秩序。填入划横线部分最恰当的一项是:
在窗体中添加一个命令按钮(名为Command1)和一个文本框(名为text1),然后编写如下事件过程:PrivateSubCommand1_C1ick()DimxAsInteger,yAsInteger,zAsIntege
(a)老人RonaldTam说普通话,视力很好但是不能读和理解英语。他给StanleyBank签了一份英文的、金额为50000港元的担保书。他的儿子John,只会讲广东话,告诉他那只是一份他们在银行开立共同账户的申请。几个月以后,Ronald收到来自银
Amongthemostenduringofallhorrorsistheprospectofaslow,painfuldeath.Thosewhowitnesstheprotractedterminalillne
最新回复
(
0
)