首页
登录
职称英语
[originaltext] (32) The world’s first completely automatic railway has been
[originaltext] (32) The world’s first completely automatic railway has been
游客
2024-02-25
65
管理
问题
(32) The world’s first completely automatic railway has been built under the busy streets of London. The railway is called the Victoria Line, and it is part of the complete London underground railway.
(32)The new Victoria Line was opened in 1969. This stations on the other lines need a lot of workers to sell tickets, and to check and to collect them when people leave the trains. This is all different from the Victoria Line. (33) Here a machine checks and collects the tickets, and there are no workers on the platforms.
(34)On the train, there is only one worker. If necessary, this man can drive the train. But usually he just starts it; it runs and stops by itself. The trains are controlled by electrical signals which are sent by the so-called "command spots". The command sports are the same distance apart. Each sends a certain signal. The train always moves at the speed that the command spots allow. (35)If the command spot sends no signals, the train will stop.
Most of the control work is done by computers. The computers also fix the train’s speeds, and send the signals to the command spots.
Other machines make sure that the trains are always a safe distance apart. If one train stays too long at a station, the other trains will then automatically move slower. So there is no danger of accidents on the line.
选项
A、A platform worker.
B、A computer.
C、The command spot.
D、A machine.
答案
D
解析
事实细节题。本题关键句为“Here a machine checks and collects the tickets,and there are no workers on the platforms.”有一台机器用于检票、售票,月台上没有工作人员。故正确答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/3482072.html
相关试题推荐
[originaltext]M:Goodeveningandwelcometo"Hardlife",theprogramthattalks
[originaltext]M:Goodeveningandwelcometo"Hardlife",theprogramthattalks
[originaltext]W:I’vejustbeenreadinganarticleonbiotherapy.M:Biotherapy
[originaltext]W:I’vejustbeenreadinganarticleonbiotherapy.M:Biotherapy
[originaltext]ThetwomostfamousfacesinBritaintodaybelongtotwowome
[originaltext]ThetwomostfamousfacesinBritaintodaybelongtotwowome
[originaltext]Moviesarethemostpopularformofentertainmentformillion
[originaltext]W:Isthelibraryopeneveryday?M:Exceptonweekends.Itisope
[originaltext]W:Isthelibraryopeneveryday?M:Exceptonweekends.Itisope
[originaltext]W:Isthelibraryopeneveryday?M:Exceptonweekends.Itisope
随机试题
Whatistheunits’digitof(9)5(13)3(7)7?A、1B、3C、6D、7E、9E本题考查个位数幂的特征,对于个位数而
[originaltext]Everysummer,whenItopupmyselectionofsummeroutfitsfromt
[originaltext]Mostpeoplefeellonelysometimes,butitusuallyonlylasts
Formanyyears,wehavebeenledtobelievethataperson’sintellectualint
[originaltext]TheSaharaDesertisoneofthedriestregionsonearth.Very
有爆炸危险的甲、乙类厂房的分控制室宜独立设置,当贴邻外墙设置时,应采用耐火极限不
下列对有抗震要求的单层礼堂的结构布置的叙述,不正确的是()。A.大厅与前、后
全面质量管理包括( )的全面管理。A、过程质量 B、工程质量 C、工作质量
下列疾病哪种是由于T细胞对自身抗原应答引起的自身免疫性疾病A.1型糖尿病B.系统
下列关于详细规划的表述,错误的是()。(2018年真题)A.法定的详细规划
最新回复
(
0
)