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
54
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
Tomisalwaysthefirstto______theschool.A、getB、reachtoC、agrriveatCA改为get
Itisoftenthroughgooddinnersthatonemakesfriends.InJapan,thereare
Youarecurrentlyinamuddlewherefinancialand________concernsaretangledto
A)TheSupremeCourtunambiguouslyruledWednesdaythatprivacyrightsarenots
A.复方制剂 B.人工合成品 C.有效成分之一 D.药用植物 E.生药阿
在细菌性痢疾流行期间,易感者口服多价痢疾减毒活疫苗,免疫期可维持()。A.1~
关于净化有爆炸危险粉尘的干式除尘器和过滤器的设置,做法错误的是()。A.布置在
尽管分组比较仍然是目前最普遍、最直观、最受媒体欢迎的绩效评价方法,但该方法在应用
根据《商业银行授信工作尽职指引》,授信工作人员应当回避其近亲属申请的客户授信业务
非处方药说明书【注意事项】下的内容包括A.“对本品过敏者禁用,过敏体质者慎用”
最新回复
(
0
)