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
2024-02-29
58
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://www.tihaiku.com/zcyy/3492107.html
相关试题推荐
[originaltext]Notuntilsomewhatrecently(thatis,intermsofhumanhistory)
[originaltext]Notuntilsomewhatrecently(thatis,intermsofhumanhistory)
[originaltext]ChristmasisthetimewhenChristiansaroundtheworldcelebrate
[originaltext]ChristmasisthetimewhenChristiansaroundtheworldcelebrate
[originaltext]M:I’mlookingforsomesportsshoes.Canyougivemesomeadvice
[originaltext]Electronicdevicesarechangingthewaypeoplelistentomusic.B
[originaltext]TheWorldHealthOrganizationsays57nationsinsouthernAfrica
[originaltext]TheWorldHealthOrganizationsays57nationsinsouthernAfrica
[originaltext]W:Hey,Tom.What’sup?Whereareyouoffto?M:I’monmywayto
[originaltext]W:Hey,Tom.What’sup?Whereareyouoffto?M:I’monmywayto
随机试题
[originaltext]InApril,theManhattanInstitutereleaseditsyearlystudyo
Aprofessorstoodbeforehisphilosophyclassandhadsomeitemsinfrontof
Learningtoplayamusicalinstrumentcanchangeyourbrain,withaUSrevie
[originaltext]MymotherwasborninasmalltowninnorthernItaly.(16)She
()对公司董事和高管的行为是否符合法律法规和公司章程的规定行使监督权。A.股东
国际直接投资企业的建立方式有新建和并购,其中并购的优点包括()。A.可以利用目
下列哪项不是斜板沉淀池提高沉淀池去除效率的原因()。 A斜板沉淀池的颗粒沉
资源性国有资产的管理,必须遵循的原则有()。A.所有资源属于国家所有 B.统
男,建筑工人。从脚手架跌下伤及会阴部。3小时后不能自行排尿且有尿外渗。尿外渗的范
某企业因存在重大违法行为,被行政机关责令停产停业。依据《行政处罚法》的规定,下列
最新回复
(
0
)