首页
登录
职称英语
What is the topic of the talk? [br] [originaltext] Although I think the Unit
What is the topic of the talk? [br] [originaltext] Although I think the Unit
游客
2024-09-28
15
管理
问题
What is the topic of the talk? [br]
Although I think the United States generally has an excellent system of transportation, I don’ t 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, 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. 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. Magievs will not actually ride on the tracks but will fly above tracks that are magnetically activated. This will save wear and tear on the tracks. These trains will be able to go faster than 150 miles per hour. At that speed conventional trains have trouble staying on the tracks. 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
转载请注明原文地址:https://tihaiku.com/zcyy/3778054.html
相关试题推荐
PresidentObamaplanto[br][originaltext]OfficialsinWashingtonsayPres
PresidentObamaplanto[originaltext]OfficialsinWashingtonsayPresident
Whatisthenewsitemmainlyabout?[br][originaltext]Theamountofproduc
Whatisthenewsitemmainlyabout?[originaltext]Theamountofproductstha
Wherecanpeopletakeadulteducationcourses?[br][originaltext]Millions
Wherecanpeopletakeadulteducationcourses?[originaltext]Millionsofpe
Modernholistictreatmentfocuseson______.[br][originaltext]Theoldestf
Modernholistictreatmentfocuseson______.[originaltext]Theoldestformso
TheapartmentisfurnishedwithallthefollowingEXCEPT[br][originaltext]M:
TheapartmentisfurnishedwithallthefollowingEXCEPT[originaltext]M:Gooda
随机试题
[originaltext]W:Thisevening,theguestspeakerwithusisDr.Bush.He’sgoin
女,26岁,人流后1周,发热6天,右下腹痛2天,追问病史,术后有性交史。体格检查
近年来,我国工程造价管理呈现出()的发展趋势。A:国际化 B:信息化 C:
根据我国现行规定,下列属于造价工程师权利的是( )。A.发起设立工程造价咨询企
A.直肠、膀胱刺激症状 B.发热、呃逆,肩颈部痛 C.发热、腹痛、腹胀、腹部
一般说来,初痢实则A.通之 B.补之 C.濡之 D.燥之
某县法院公开审判王某奸淫幼女案,县检察院以人员不足为由,未派人员出庭支持公诉。法
企业接受投资者投入的商品应该按照该商品在投出方的账面价值入账。( )
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
根据《关于做好生物多样性保护优先区域有关工作的通知》,下列说法错误的是( )。
最新回复
(
0
)