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
2023-09-10
12
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://www.tihaiku.com/zcyy/3002949.html
相关试题推荐
[originaltext]CaptainJosephMackey’sairplanewasflyingovertheoceanon
[originaltext]Iknewitwouldn’tbelongbeforetheydiscoveredmyescapef
[originaltext]M:Ow!Thathurts!W:Whathappened?Didyoucutyourself’?M:Ye
[originaltext]M:Ow!Thathurts!W:Whathappened?Didyoucutyourself’?M:Ye
[originaltext]SomestudentsattheOpenUniversityleftschool20yearsago
[originaltext]SomestudentsattheOpenUniversityleftschool20yearsago
[originaltext]SomestudentsattheOpenUniversityleftschool20yearsago
[originaltext]Doyouhavetroublesleepingatnight?Thenmaybethisisfor
[originaltext]Doyouhavetroublesleepingatnight?Thenmaybethisisfor
[originaltext]BritishColumbiaisthethirdlargestCanadianprovince,both
随机试题
火灾显示盘故障原因()。A.火灾显示盘本身坏 B.接线松动或接线断 C.无
在Windows的DOS窗口中键入命令 C:>\nslookup>s
国家鼓励()有利于未成年人健康成长的图书、报刊、电影、广播电视节目、舞台艺
关于妊娠早期阶段子宫特点,下列说法错误的是A.子宫可耐受胎儿及附属物的负荷 B
下列表现符合间歇热的是( )A.体温持续升高至39~40℃,持续数日 B.2
下面旋律片段属于哪种民族舞蹈音乐?() A、傣族孔雀舞B、维吾尔族赛乃姆
宏观经济均衡的指的是( )。A.意愿总需求小于意愿总供给的GDP水平 B.意
解热镇痛药抑制前列腺素(PG)合成的作用部位是A.抑制磷脂酶A B.抑制膜磷脂
与甲状腺有关的肿瘤特点是()。A.位于顶部 B.具有对称性 C.常多囊性
阅读下列材料,回答问题: 在武汉的另一场由婚介机构举办的富豪相亲会上,主办方称
最新回复
(
0
)