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
11
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
Theword"foolish"inthefirstparagraphprobablymeans______.[br]Thephrase
__________(代表地震灾民),Ithankyouverymuch.Onbehalfofthevictimsoftheearth
______isthelongestriverintheU.S.A.A、MississippiRiverB、HudsonRiverC、Col
Anunlimitedarmsrace______wellincreasethedangerofwar.A、mayB、canC、must
()有利于提高教学效率和教学质量,同时还容易管理,保证教学秩序的稳定。A.学年
急性白血病患者为防治尿酸肾病应多饮水,使每日尿量达________ml以上。
关于图片中的青铜器,下列说法不正确的是( )。 A.①是先秦时期的货币
下列关于居间业务中的房地产经纪机构的描述中,正确的是( )。A.房地产经纪机构
(2021年第2批真题)下列情况中,不需要修改或补充施工组织设计的是( )A.
下列哪一途径不属于氨的去路A.非必需氨基酸的生成 B.氨基甲酰磷酸的生成 C
最新回复
(
0
)