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
2023-11-11
63
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/3177000.html
相关试题推荐
WhichwasnotincludedinPresidentPutin’sefforts?[originaltext]TheInter
What’sthemainpointthespeakermakes?[br][originaltext]Todaywe’rego
What’sthemainpointthespeakermakes?[originaltext]Todaywe’regoingto
Fromtheconversation,welearnthatthecostofthenewwing[originaltext]W:W
Whatisthemaintopicoftheconversation?[br][originaltext]M:Hi,Alison.W
Whatisthemaintopicoftheconversation?[br][originaltext]M:Hi,Alison.W
Whatarethetwospeakersmainlytalkingabout?[br][originaltext]M:HeyLisa,
Whatarethetwospeakersmainlytalkingabout?[originaltext]M:HeyLisa,how’s
NahumAcostawasaccusedof______.[br][originaltext]Aformeraidetoth
NahumAcostawasaccusedof______.[originaltext]AformeraidetotheMexi
随机试题
[originaltext]AnewstudyintheUnitedStatessaysmentaldisordersappear
Unlessmeasuresaretakenatonce,thereisapossibilitythatalltheocean
[originaltext]KennyEnjoysDrivingaTaxiInterviewer:Well
下列选项中属于第二信号系统条件反射的是()。A.见风流泪 B.谈梅生津 C
卡环固位臂尖应位于基牙的A.外形高点线上 B.外形高点线方 C.外形高点线龈
关于脱落细胞涂片制作,正确的说法是A.较稀薄的标本适于涂抹法B.巴氏染色适用于干
关于仲裁的强制执行表述正确的是()。 A、由被执行人所在地或被执行财产所在
A.对羟基桂皮酸B.绿原酸C.阿魏酸D.咖啡酸E.丹参素丙具有耐缺氧、抗冠状动脉
下列各项中,属于在某一时段内履行的履约义务的有( )。A.客户在企业履约的同时
下列设备中,不属于光伏发电设备组成的是( )。A.汇流箱 B.逆变器 C.
最新回复
(
0
)