首页
登录
职称英语
What is the main topic of the passage? [br] [originaltext] Although I think
What is the main topic of the passage? [br] [originaltext] Although I think
游客
2024-10-08
38
管理
问题
What is the main topic of the passage? [br]
Although I think the United States generally has an excellent system of transportation, I do not think that it does a good job of transporting people between cities that are only a few hundred miles apart. A person commuting between Detroit and Chicago, or between San Francisco and Los Angeles, the so-called "strip cities", may spend only a relatively short time in the air, while spending several hours getting to and from the airport. This situation makes flying almost as time-consuming as driving. Moreover, airplanes use a lot of their fuel just getting into the air. [15]They simply are not fuel efficient on short trips. High speed trains may be an answer. One fairly new proposal for such a train is for something called a maglev, meaning a magnetically levitated train. [16] Maglevs will not actually ride on the tracks, but will fly above tracks that are magnetically activated. [17] This will save wear and tear on the tracks. These trains will be able to go faster than 150 miles an hour. At that speed, conventional trains have trouble staying on the tracks. [14] As you can see, maglevs offer exciting possibilities for the future.
选项
A、It uses nuclear energy.
B、It rests on a cushion of pressurized air.
C、It flies over magnetically activated tracks.
D、It uses a device similar to a jet engine.
答案
C
解析
短文中说,磁悬浮列车实际并不是在轨道上(on the tracks)行驶,而是悬浮在磁力驱动的轨道上方(above tracks),C项把above同义替换成over,故为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3791564.html
相关试题推荐
Nigeria’sNationalSecurityAdviserhasbeenfiredbecause[br][originaltext]
AccordingtotheresearchbyNASA,anafternoonnap______.[br][originaltext]
AccordingtotheresearchbyNASA,anafternoonnap______.[originaltext]T
WhenisThanksgivingDayinAmerica?[br][originaltext]ThanksgivingDayis
Whatistheconversationmainlyabout?[br][originaltext]W:Gosh!Fred,anothe
Whatistheconversationmainlyabout?[br][originaltext]W:Gosh!Fred,anothe
Whatistheconversationmainlyabout?[originaltext]W:Gosh!Fred,anothercup
Whereisthemancallingto?[br][originaltext]W:Goodmorning,canIhelpyou
Whereisthemancallingto?[br][originaltext]W:Goodmorning,canIhelpyou
Whereisthemancallingto?[originaltext]W:Goodmorning,canIhelpyou?M:Y
随机试题
B
IsittruethattheAmericanintellectualisrejectedandconsideredofnoa
[originaltext]W:JimWhiteiseditorofBusinessTravelWeekly.Jim,thanksfor
GymCrazeThegymcrazebecomesanessential
Asthemountainswerecoveredwitha______ofcloud,wecouldn’tseetheirtops
Probablynoothermusicalinstrument(乐器)
乙肝疫苗的免疫期为A:1~3年 B:3~5年 C:5~10年 D:20年
民间剪纸是劳动人民为了满足自身精神生活的需要而创造,并广为流传的一种艺术样式。它
如图所示,把碗放在大锅内的水中蒸食物,假设碗中的汤和水的沸点一样都是100℃,且
中国证券监督管理委员会及其派出机构依法对首席风险官进行监督管理。中国期货业协会、
最新回复
(
0
)