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
27
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 fuel that burns cleanly.
B、An oil additive that helps cool engines.
C、A material from which filters are made.
D、An insulating material sprayed on engine parts.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3592768.html
相关试题推荐
[originaltext]M:Andnow,Mrs.Smith,canyoutelluswhathappenedatyourapa
[originaltext]W:EnglishLanguageCenter.HowmayIhelpyou?M:Yes.I’mcalli
[originaltext]W:EnglishLanguageCenter.HowmayIhelpyou?M:Yes.I’mcalli
[originaltext]It’scommonknowledgethatmusiccanhaveapowerfuleffecto
[originaltext]M:HiDiana,mindifIsitdown?W:Notatall,Jerry.Howhavey
[originaltext]M:HiDiana,mindifIsitdown?W:Notatall,Jerry.Howhavey
[originaltext]M:HiDiana,mindifIsitdown?W:Notatall,Jerry.Howhavey
[originaltext]W:Dad,Dad,Dad!M:Uh,what?W:Themovieisover.Yousleptth
[originaltext]W:Dad,Dad,Dad!M:Uh,what?W:Themovieisover.Yousleptth
[originaltext]W:Dad,Dad,Dad!M:Uh,what?W:Themovieisover.Yousleptth
随机试题
AcademyAwardnominees(被提名的人)whogohomeempty-handedmaynothaveashinyO
[audioFiles]2017m2x/audio_ezfj_011_201702[/audioFiles]FindingPeaceofMind
目前使用的防杀病毒软件的作用是()。A.检查计算机是否感染病毒,清除已感染的全
爸爸很快为小路找了个继母,继母对小路并不好,不让爸爸给小路筹集学费。而小路的生母
以下关于磁盘碎片整理程序的描述中,正确的是()A.磁盘碎片整理程序的作用是延长
根据我国《中华人民共和国合同法》的规定,在()情况下合同无效。A、一方以
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A
共用题干 徐先生从事销售工作,收入不菲但比较不稳定。由于经常外出做业务,徐先生
下列关于“老龄化”的表述,哪项是正确的?()A.人口的年龄结构金字塔不直接反
SuddenlyitoccurredtoCharlie_________
最新回复
(
0
)