首页
登录
职称英语
What’s the conversation mainly about? [br] [originaltext]W: Hi, Bill. You weren
What’s the conversation mainly about? [br] [originaltext]W: Hi, Bill. You weren
游客
2023-11-07
59
管理
问题
What’s the conversation mainly about? [br]
W: Hi, Bill. You weren’t in engineering class today, were you?
M: Hi, Amy. I have the flu. I was wondering if you could tell me what went on.
W: Actually we had an interesting class. Dr. Collin talked about a new type of fuel.
M: Oh, yeah?
W: Uh-hum. It’s called dimethyl ether or DME.
M: Oh, I remember reading something about DME. It’s mostly used in spray cans, right?
W: Right. DME doesn’t destroy the ozone, so it’s been environmentally friendly.
M: But doesn’t DME pollute the air if it’s burned in an engine?
W: Dr. Collin said something about its exhausts being clear, that it doesn’t release as many pollutants as diesel fuel. And he mentioned something about DME being more efficient than other alternative fuels.
M: So when will it replace diesel fuel?
W: Not for a while. It’s not economical to mass-produce.
M: Well, thanks for the information. I guess I won’t need to borrow your notes.
W: Well, maybe you should look at them. We are having a test next week.
M: Okay, could you give them to Mike Andrews? I think he is in your psychology class. He is my roommate.
W: Sure. I hope you’re feeling better soon.
M: Thank you.
选项
A、It hasn’t been adequately tested.
B、It’s expensive.
C、It damages car engines.
D、It’s dangerous to transport.
答案
B
解析
细节题。DME不会很快取代柴油,因为它的生产费用昂贵,expensive是not economical“不经济的,不节俭的”的同义替换,所以选择B项。其他选项纯属无中生有。
转载请注明原文地址:https://tihaiku.com/zcyy/3166734.html
相关试题推荐
Whatistheproblemthatisnewlycomingupforthedrivers?[br][originaltext
Thefigureofworldilliteracywasobtainedby[br][originaltext]Itisest
Thefigureofworldilliteracywasobtainedby[br][originaltext]Itisest
Thefigureofworldilliteracywasobtainedby[br][originaltext]Itisest
Whenwasthebuildingbeingvisitedconstructed?[br][originaltext]Manyof
Whenwasthebuildingbeingvisitedconstructed?[br][originaltext]Manyof
Whatisthepassagemainlyabout?[originaltext]Todaytheofficiallanguage
Now,anation’spoliticalinfluencedependson[originaltext]Nowadays,thes
WhathashappenedinGaza?[br][originaltext]Gazaisfacingitsworsthuma
WhathashappenedinGaza?[originaltext]Gazaisfacingitsworsthumanitari
随机试题
Everynightshelistenedtoherfathergoingaroundthehouse,lockingthed
Newtechnologylinkstheworldasneverbefore.Ourplanethas【B1】______.It
A.1根 B.2根 C.3根 D.4根
以下说法中,错误的是()。A.张某和王某合作完成一款软件,他们可以约定申请专利
在特定置信水平,对总体特征的估计值预计将落入的区间被称为()。A.精确度
一宽度b,厚度为t的钢板上有一直径为d的孔,则钢板的净截面面积为( )。
小儿上呼吸道感染的主要病原体是( )A.细菌 B.病毒 C.支原体 D.
下列有关化学教学情境创设说法正确的是()。A.为了激发学生的学习兴趣.要尽量多
公募基金管理人申请募集基金时,应向中国证监会提交的募集申请文件包括( )。
可作为深静脉栓塞术后静脉血栓的早期诊断指标的是A.ICAM-1B.VCAM-1C
最新回复
(
0
)