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、How to produce pollution free bus. B、How to prevent our environment from being polluted. C、Whether to ride a passenger bus or
A、How to produce pollution free bus. B、How to prevent our environment from being polluted. C、Whether to ride a passenger bus or
admin
2012-10-30
49
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. Is your car in the shop?
W: No. I’ve just been thinking a lot about the environment lately. I think the air will be a lot cleaner if we all use public transportation when we could.
M: 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 going to do? Install pollution filters in the 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 coniine oxide. It’s a really good insulator. And a thick coat of it gets sprayed on the certain part of the engine.
M: An insulator?
W: Yeah. Actually, what it does is to reflect back the heat of burning fuel. So the fuel will bum more completely.
M: Sounds like people should all go out and get this stuff to spray their car engines.
W: Well, it’s not really that easy. You first have to heat the material over 10,000 degrees and then, well, you get the idea. It’s not something you or I can do ourselves.
选项
A、How to produce pollution free bus.
B、How to prevent our environment from being polluted.
C、Whether to ride a passenger bus or a private car.
D、How to reduce the pollutants produced by bus.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/Cp57777K
0
大学英语四级
相关试题推荐
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmerican【B1】______ofover100,000peoples
It’sofficialthatmarriedpeoplearehealthier,oratleasttheythinktheyare.AnAmerican【B1】______ofover100,000peoples
A、Howthemanfeelsaboutthenews.B、Whetherthemanhasthemoney.C、Ifthemanwilllosehisjob.D、Whenthemanwillleave.
A、It’sratherexpensive.B、It’stoosmallfortheman.C、Ithasplentyoflight.D、Itdoesn’thavemanyclosets.C细节题。从上题的分析可以推测
Hisbusinesswasverysuccessful,butitwas______(以他的家庭生活为代价的).
Voluntarylearninginorganizedcoursesbymaturemenandwomeniscalledadulteducation.Sucheducationis【36】tomakepeoplea
ThepresidentoftheUnitedStateshasoneofthetoughestjobsintheworld.Hardlyanyoneelseiswatchedsocloselybysoman
Althoughtheenjoymentofcolorisuniversalandcolortheoryhasallkindsofnamestoit,colorremainsaveryemotionalands
Infuturetradethekeydevelopmenttowatchistherelationshipbetweentheindustrializedandthedevelopingnations.TheThir
随机试题
论述外部环境的诸因素对商业文化运行的制导作用。
Findingagoodwork-at-homejobisnoteasy.Althoughyouseealltheonlineadvertising,therearen’tthatmanyofthem.Those
Mr.BrownoftenAworeaheavycoatbecausehewasnotBusedtoCliveinsuchDacoldclimate.
中药的纯度检查包括
特大安全事故发生后,省、自治区、直辖市人民政府应当按照国家有关规定()发布事故消息。
典型的融资租赁是指长期的、完全补偿的、不可撤销的、由()负责维护的租赁。
积极的预防工作,是减少各种治安危害和维护社会治安秩序的( )。
某市某县烟花爆竹厂未经批准擅自生产烟花爆竹。个体工商户甲从该厂购烟花爆竹零售。甲的邻居乙从甲处购买了烟花爆竹,因为烟花爆竹本身存在质量问题,结果燃放后将乙的左眼炸瞎。根据法律规定,乙应当获得的各类赔偿费用合计为12万元。事情发生后。该县安全生产监督管理局(
Thefollowingparagraphsaregiveninawrongorder.ForQuestions41-45,youarerequiredtoreorganizetheseparagraphsintoa
A、Heistherightmantogetthejobdone.B、Heisamanwithprofessionalexpertise.C、Heisnoteasytogetalongwith.D、Hei
最新回复
(
0
)