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
2024-06-05
45
管理
问题
Although I think the United States generally has an excellent system 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.
Maglevs 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 one hundred fifty 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、Energy conservation.
B、A new kind of transportation.
C、Strip cities.
D、Advantages o{ air transportation over rail roads.
答案
B
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3620691.html
相关试题推荐
[originaltext]Today,IwouldliketobeginbydiscussingearlyEuropeanset
[originaltext]Today,IwouldliketobeginbydiscussingearlyEuropeanset
[originaltext]Manypeoplesufferfromsomeformofextremeanxiety.Someex
[originaltext]Manypeoplesufferfromsomeformofextremeanxiety.Someex
[originaltext]M:Hi,Claire.Howdoesitfeeltobebackoncampus?W:Keith,h
[originaltext]M:Hi,Claire.Howdoesitfeeltobebackoncampus?W:Keith,h
[originaltext]RecentlytheDepartmentofPlanningofNewYorkissuedarepo
[originaltext]RecentlytheDepartmentofPlanningofNewYorkissuedarepo
[originaltext]Howdoyourisetothetopinbusiness?Whatpersonalqualifi
[originaltext]M:Sowhat’syourtrouble?W:Well,doctor,,Ihaven’tbeenfeeli
随机试题
Readthetextbelowaboutthehotelindustry.Inmostofthelines(41-52)
______[br][originaltext]SentenceNo.1Highschool-ageboysaremorelikely
IfyourchildisaskingforUggbootsorapriceyhottoyfortheholidays,
患儿,6岁,2周前出现发热咳嗽,继而出现膝踝关节皮肤紫癜,关节肿胀灼痛,肢体活动
甲公司2017年1月1日按面值发行可转换公司债券2万份,每份面值100元,债券票
(2015年真题)按债券利率是否固定分类,债券可分为()和浮动利率债券。A
通过米炒降低毒性的药物是A.斑蝥B.马钱子C.鸡内金D.党参E.僵蚕
共用题干 TheFridge1.Thefridgeisconsider
甲向乙银行借款,并签订了借款合同,约定借款金额为10万元,利息为1万元。乙银行首
教学原则是人们教学()的总结。
最新回复
(
0
)