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
38
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:https://www.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
Languagelearningbeginswithlistening.Individualchildrenvarygreatlywi
Wildducksandothermigratory(迁移的)birdscouldbeimportantcarriersofdea
Theideaofrobotscontrolledbythehumanbrainhaslongbeenastapleofs
引起大叶性肺炎最常见病原菌为A.溶血性链球菌 B.结核菌 C.肺炎球菌
下列引起发生工程费用偏差的原因中,属于业主方的有()A、材料代用 B、设计标准
温热药长期给药,可引起动物机体的变化是()A.痛阈值降低B.惊厥阈值升高C.脑
某混凝土试块强度值不满足规范要求,但经法定检测单位对混凝土实体强度经过法定检测后
新生儿寒冷损伤综合征的关键护理措施是A.纠正缺氧 B.预防各种感染 C.供给
三类故障发生后,运维单位应在1小时内(有人值守变电站为1小时,无人值守站为1.5
Internet的中文意思是广域网。()
最新回复
(
0
)