首页
登录
职称英语
[originaltext] Although I think the United States generally has an excellent
[originaltext] Although I think the United States generally has an excellent
游客
2023-07-28
35
管理
问题
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, 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 are simply 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 "mag-lev", meaning a magnetically levitated train. Mag-levs will not actually ride on the track, but will fly above the track that is magnetically activated. This will save wear and tear on the track. These trains will be able to go faster than 150 miles per hours. At that speed, conventional trains have trouble staying on the track. As you can see, mag-levs offer exciting possibilities for the future.
选项
A、A lack of available flights.
B、Long delays at the airports.
C、Boredom on long flights.
D、Long trips to and from airports.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2875847.html
相关试题推荐
[originaltext]Doyouknowthatthere’sakindofbirdthatcansew?Thisbi
[originaltext]Spacemenhavetobespeciallytrainedfortravelinginspace.
[originaltext]Spacemenhavetobespeciallytrainedfortravelinginspace.
[originaltext]Spacemenhavetobespeciallytrainedfortravelinginspace.
[originaltext]W:Thoughmanypeoplewanttohaveahappyfamilyandmarriage,t
[originaltext]LastsummerIwasworkinginWashington,D.C.,asanintern
[originaltext]M:Areyouclosetoyourparents?W:Yeah,we’reclose.Myfather
[originaltext]M:Areyouclosetoyourparents?W:Yeah,we’reclose.Myfather
[originaltext]W:Goodmorning.I’mheretoseeMrEdison.M:MrEdisonwentto
[originaltext]W:Goodmorning.I’mheretoseeMrEdison.M:MrEdisonwentto
随机试题
JuanPoncedeLeonwasthefirstSpaniardtotouchtheshoresofthepresen
[originaltext]M:Hello.ThisisGregRicereportingliveinBarrow.Alaska.W:
[originaltext]VoiceOne:Thisiswhatscientistssaythesunsoundslike--t
TipsonReadingI.Three【T1】______phasesofreading【T1】______—beforereading—i
若程序中定义了三个函数f1、f2和f3,并且函数f1执行时会调用f2、函数f2执
B
下列哪项是火邪、燥邪、暑邪共同的致病特点A.伤津 B.动血 C.上炎 D.
关于科尔伯格的认知发展道德教育理论不正确的是( )。A.反对灌输,提倡发展儿童
A. B. C. D.B=0
根据我国有关法规规定,建设工程施工招标应具备的条件包括()。A.招标人已经委托了
最新回复
(
0
)