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
37
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
IntheUnitedStates,thefirstdaynurserywasopenedin1854.Nurseriesw
Ourcriminaljusticesystemisinherentlyflawedbecauseitreliesonamateurju
A.provideB.neverC.whetherD.explanationE.embarrassingF.neither
某16位AD芯片中标注电压范围是-5V~+5V,请问该款AD芯片的分辨率是(
下肢短缩,髋关节屈曲、内收、内旋畸形A.肩关节脱位 B.肘关节脱位 C.髋关
周老先生用多年积蓄盖了5间平房,与老伴、儿子及儿媳共住,产权人是周老先生。因修机
《产品质量法》规定,根据监督抽查的需要,国家可以对产品进行检验,但样本的抽取应符
奠定班级理论基础的代表人物是()。A.埃拉斯莫斯 B.夸美纽斯 C.杜威
下列建筑物、储罐(区)和堆场的消防用电设备应为一级负荷的是()A.建筑高度超过
施工方案编制依据不包括()。A.有关的法律法规、标准规范 B.施工合同 C
最新回复
(
0
)