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
40
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
HowmanyuniversitieswerethereinBritainintheyearof19607[br][original
竞争性市场下有3个完全相同的企业,生产相同产品。市场的反需求曲线为p(Q)-l-
下列各钢筋混凝土剪力墙结构布置的“原则”中,哪一项是错误的?()A.剪力墙
有着2500年厚重历史的绍兴是“没有围墙的博物馆”,所以才有了“填不满大上海、收
组织要将顾客( )作为改进产品和服务质量,提高经营管理水平及不断创新的动力,以提
依据站用直流电源系统运维细则管理规定,330kV及以上电压等级变电站及重要的22
以下是略有删节的公文部分内容,阅读之后回答。 第一节 传承千年运河,滋养流动的
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
在皮带传动中,皮带防护罩与皮带的距离不得小于( )。A.50mm B.3cm
进程和程序的本质区别是()。A.存储在内存和外存 B.顺序和非顺序执行机器
最新回复
(
0
)