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
46
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、It uses nuclear energy.
B、It rests on a cushion of professional 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://www.tihaiku.com/zcyy/3620693.html
相关试题推荐
[originaltext]M:WhatisMr.JohnsongoingtodowithhisoldhouseonParisRo
[originaltext]M:WhatisMr.JohnsongoingtodowithhisoldhouseonParisRo
[originaltext]M:WhatisMr.JohnsongoingtodowithhisoldhouseonParisRo
[originaltext]M:WhatisMr.JohnsongoingtodowithhisoldhouseonParisRo
[originaltext]M:WhatisMr.JohnsongoingtodowithhisoldhouseonParisRo
[originaltext]M:WhatisMr.JohnsongoingtodowithhisoldhouseonParisRo
[originaltext]NowandagainIhavehadhorribledreams,butnotenoughoft
[originaltext]NowandagainIhavehadhorribledreams,butnotenoughoft
[originaltext]NowandagainIhavehadhorribledreams,butnotenoughoft
[originaltext]M:Hello.NationalExpressCourierCompany,CustomerServiceDepa
随机试题
______thegiftinbeautifulgreenpaper,Sarahdepartedfortheparty.A、Havingw
Accordingtothepassage,whichofthefollowingistrue?[br]Whichofthefoll
[originaltext] (5)Solarpanelsareanincreasinglycommonsightonthetopso
Ifyou’rehappyandyouknowit,maybeyoureallyshouldclapyourhands.Th
三层结构类型的物联网不包括()。A.会话层 B.网络层 C.应用层 D.感
若某文件系统的目录结构如下图所示,假设用户要访问文件fault.swf,且当前工
学生的智力包括知识,包括能力,尤其是独立思考
(2017年真题)商用房贷款操作风险的防控措施有()。A.建立并严格执行贷款面
团体形成的原因不包括()。A.个人对于自己的归类 B.加入团体可以满足人际需
男性,25岁,很多时候独自呆坐,生活较前懒散,纪律松弛,做事注意力不集中,常漫不
最新回复
(
0
)