首页
登录
职称英语
[originaltext]M: Hi Diana, mind if I sit down?W: Not at all, Jerry. How have y
[originaltext]M: Hi Diana, mind if I sit down?W: Not at all, Jerry. How have y
游客
2024-05-10
6
管理
问题
M: Hi Diana, mind if I sit down?
W: Not at all, Jerry. 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. Instead they found a way to make their engines more efficient.
M: How?
W: Well, there is a material called the confine oxide. It’s a really good insulator. And a thick coat of it get sprayed on the certain part of the engine.
M: An insulator?
W: Well, yeah. Actually, what it does is to 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 tile air, right?
W: Yeah, and the bus will need less fuel. So with the savings on fuel cost, they say this will all pay for itself in just six months.
M: Sounds like people should all go out and get some this stuff to spray 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 be able to do ourselves.
选项
A、A new fuel for buses.
B、The causes of air pollution.
C、A way to improve fuel efficiency in buses.
D、Careers in environmental engineering.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3592766.html
相关试题推荐
[originaltext]IntheUS,(30)publicandpolicydiscussionsofhighereducat
[originaltext]IntheUS,(30)publicandpolicydiscussionsofhighereducat
[originaltext]M:Andnow,Mrs.Smith,canyoutelluswhathappenedatyourapa
[originaltext]M:Andnow,Mrs.Smith,canyoutelluswhathappenedatyourapa
[originaltext]M:Andnow,Mrs.Smith,canyoutelluswhathappenedatyourapa
[originaltext]W:EnglishLanguageCenter.HowmayIhelpyou?M:Yes.I’mcalli
[originaltext]W:EnglishLanguageCenter.HowmayIhelpyou?M:Yes.I’mcalli
[originaltext]TheRepublicanPartyisoneofthetwomainpoliticalparties
[originaltext]TheRepublicanPartyisoneofthetwomainpoliticalparties
[originaltext]M:HiDiana,mindifIsitdown?W:Notatall,Jerry.Howhavey
随机试题
HigherEducationinChinaNowadays,thereformandd
Cantreestalk?Yes,butnotinwords.Scientistshavereasontobelievetha
(2016年)税务师受托对某企业投资收益税务处理情况进行审核时,发现其处理错误的
在人血清中含量最多的IgG亚类是A.IgG1 B.IgG2 C.IgG3
Thechangeinthatvillagewasmiraculou
遇有交通事故,急诊预检护士应立即通知A:家属 B:总值班 C:医务科 D:
下图是2008年北京奥运会部分体育项目的图示,其借鉴的汉字字体是( )。 A
下列化合物中不能进行加成反应的是: A.CH=CHB.RCHOC.C2
制宪机关和宪法的起草机关的区别有哪些()A.制宪机关是行使宪法制定权的国家机关
背景 某施工单位承建一立井工程,井筒深度500m。应建设单位要求,合同约定建成
最新回复
(
0
)