首页
登录
职称英语
[originaltext]M: Hi, Diana. Mind if I sit down?W: Not at all, Jack. How have y
[originaltext]M: Hi, Diana. Mind if I sit down?W: Not at all, Jack. How have y
游客
2024-06-03
2
管理
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. Instead 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 able 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
听力材料最后女士的回答中提到了这种材料的缺陷:it’s not really that easy及you first have to heat it over 10,000 degrees,即coniine oxide的使用需要高温,选项A是对女士回答的同义转述。
转载请注明原文地址:https://tihaiku.com/zcyy/3617730.html
相关试题推荐
[originaltext]IwillneverforgetthegreetingthatmyfamilyreceivedinI
[originaltext]Whenyouchooseafreezer,rememberit’sprobablygoingtobe
[originaltext]Asresearcherslearnmoreabouthowchildren’sintelligenced
[originaltext]Asresearcherslearnmoreabouthowchildren’sintelligenced
[originaltext]Asresearcherslearnmoreabouthowchildren’sintelligenced
[originaltext]M:Goodmorningeveryone.WellIthinkwecanstartstraightaway
[originaltext]M:Goodmorningeveryone.WellIthinkwecanstartstraightaway
[originaltext]M:IamreallygettingworriedaboutMargaret.She’llsitinfor
[originaltext]M:IamreallygettingworriedaboutMargaret.She’llsitinfor
[originaltext]M:IamreallygettingworriedaboutMargaret.She’llsitinfor
随机试题
Wheredoyouthinkisthepassagefrom?[br]Primatesaresocialanimalsbecause
[originaltext]Thefiddlercrab(招潮蟹)isalivingclock.Itindicatestheti
[originaltext]Whencaughtinpouringrainwithoutanumbrella,mostpeople
根据现行国家标准《天然花岗石建筑板材》GB/T18601-2009按表面加工程度
(2018年,经修改)下列物权变动中,以登记作为对抗要件的是( )。A.以正在
关于缺陷责任与保修责任的说法,正确的是()。A.缺陷责任期自合同竣工日期起计
下列可引起中枢神经系统兴奋的药物是()。A.麻黄B.桂枝C.柴胡D.细辛E.葛
患者女,40岁。近来出现体重增加及向心性肥胖,四肢肌肉萎缩,腹部有紫斑,多毛。实
下列各句中,有语病的一句是()。A.人生苦乐并非纯粹由物质条件决定,百万富翁
1988的1989次方+1989的1988次方的个位数是( )A.9 B.7
最新回复
(
0
)