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
37
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、On short trips.
B、On long trips.
C、When flying over cities.
D、When flying at high altitudes.
答案
A
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3778053.html
相关试题推荐
PresidentObamaplanto[br][originaltext]OfficialsinWashingtonsayPres
Accordingtothenews,whathashappenedlastautumn?[originaltext]LastOct
Whatisthenewsitemmainlyabout?[br][originaltext]Theamountofproduc
Wherecanpeopletakeadulteducationcourses?[br][originaltext]Millions
Wherecanpeopletakeadulteducationcourses?[br][originaltext]Millions
Wherecanpeopletakeadulteducationcourses?[originaltext]Millionsofpe
Whatisthepassagemainlyconcernedabout?[br][originaltext]Sleepisv
Whatisthepassagemainlyconcernedabout?[originaltext]Sleepisveryan
Modernholistictreatmentfocuseson______.[br][originaltext]Theoldestf
Modernholistictreatmentfocuseson______.[originaltext]Theoldestformso
随机试题
WhatistheweatherlikeinthenorthernandeasternEnglandtoday?[br][origi
Youshouldspendabout20minutesonQuestions14-26,whicharebasedonReading
UniversitiesBranchOutA)Asneverbeforeintheirl
Accordingtonewgovernmentfigures,pollutionlevelsarerisingagainafter
镇肝息风汤主治证的脉象应是A.滑数 B.弦长有力 C.弦涩 D.弦滑 E
细胞凋亡的实质是A.病变的结果B.生理过程C.坏死的一种D.意外死亡E.被动死亡
行政许可是指行政机关根据公民、法人或者其他组织的申请,经依法审查,准予其从事特定
宏观经济政策目标一般包括( )。 A.充分就业 B.经济增长 C.价格
最常用的索赔费用计算方法是()。2018真题A、总费用法 B、修正总费用法
对钢筋中的磷、硫含量,混凝土中粗集料中的活性氧化硅成分进行现场检查的方法是(
最新回复
(
0
)