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
2023-09-11
90
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://tihaiku.com/zcyy/3004425.html
相关试题推荐
[originaltext]Insciencethemeaningoftheword"explain"sufferswithciv
[originaltext]Insciencethemeaningoftheword"explain"sufferswithciv
[originaltext]Insciencethemeaningoftheword"explain"sufferswithciv
[originaltext]Insciencethemeaningoftheword"explain"sufferswithciv
[originaltext]AuniquelabattheUniversityofChicagoisbusyonlyatnig
[originaltext]AuniquelabattheUniversityofChicagoisbusyonlyatnig
[originaltext]M:Iwanttoregisterforthismathematicscourse.W:I’msorryr
[originaltext]M:Iwanttoregisterforthismathematicscourse.W:I’msorryr
[originaltext]W:Hello?M:Hi,May,thisisBillJohns.W:Ohhi,Bill.Youwer
[originaltext]Thegreatadvanceinrockettheory40yearsagoshowedthatl
随机试题
Pronouncingalanguageisaskill.Everynormalpersonisexpertintheskil
Whenyouhavefinishedwiththebook,don’tforgettoreturnittoTim,______?
“三元悖论”中的“三元”是指() Ⅰ.自由的资本流动Ⅱ.固定的汇率Ⅲ.独立的财
比较法可用于()的求取。A.经营收入 B.空置率 C.报酬率 D.土
企业劳动关系调整信息系统设计的主要内容不包括( )。A.信息需求分析 B.
A.0 B.1/2 C.2 D.+∞
风险事故情景设定:根据《建设项目环境风险评价技术导则》,下列()不属于风险事故情
有关预应力筋制作的说法,正确的有()。A、预应力筋宜使用砂轮锯或切断机切断,可采
正式发动分娩的主要表现为A.见红 B.下腹隐痛 C.宫颈变软 D.规律宫缩
施工作业的定额时间是在拟定基本工作时间、辅助工作时间、准备与结束时间()以及休息
最新回复
(
0
)