首页
登录
职称英语
[originaltext] The world’s first completely automatic railway has been built
[originaltext] The world’s first completely automatic railway has been built
游客
2023-09-15
15
管理
问题
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.
The new Victoria Line was opened in 1969.This new line was very different from the others. The 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 on the Victoria Line. Here a machine checks and collects the tickets, and there are no workers on the platforms.
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 spots are the same distance apart. Each sends a certain signal. The train always moves at the speed that the command spots allow. 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. One train may stay 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、To drive the train after it is started automatically.
B、To start the train and to drive it when necessary.
C、To take care of the passengers on the train.
D、To send commanding signals to the command spot.
答案
B
解析
What is the task of the ore worker on the Victoria Line train?
选项均以to+do的形式开头,表明本题考查做某事的目的或行为活动。问题询问的是工人在Victoria铁路线上的任务是什么。文中提到在维多利亚线运营的火车上,工人只需启动火车,或在必要时进行驾驶,B项正确.
转载请注明原文地址:https://www.tihaiku.com/zcyy/3017331.html
相关试题推荐
[originaltext]W:Hello,thisisNewYorkAirlines.WhatcanIdoforyou,sir?
[originaltext]M:Goodmorning,Madam.CanIhelpyou?W:I’dliketobuyahand
[originaltext]M:Goodmorning,Madam.CanIhelpyou?W:I’dliketobuyahand
Atwhattimeofdaydidthefirestart?Intheearly______.[br][originaltext
Atwhattimeofdaydidthefirestart?Intheearly______.[br][originaltext
Atwhattimeofdaydidthefirestart?Intheearly______.[br][originaltext
[originaltext]W:Hello,AirChina.WhatcanIdoforyou,Sir?M:CanIbooka
[originaltext]W:Hello,AirChina.WhatcanIdoforyou,Sir?M:CanIbooka
[originaltext]M:I’dliketoseeyourmanager.W:Sorry,hewon’tbebackfrom
[originaltext]M:I’dliketoseeyourmanager.W:Sorry,hewon’tbebackfrom
随机试题
Officialhealthadvicethatsaidhouseholdchoreshelpkeepyouactivehasb
Accordingtonewgovernmentfigures,pollutionlevelsarerisingagainafter
下列文件被认为是世界上第一部版权法的是()A.1709年英国的《安娜女王法》
所有者权益包括()。A.股本溢价 B.法定财产重估 C.接受捐赠的资
反思型教师与经验型教师的区别?
根据我国《继承法》的规定,祖父母、外祖父母是孙子女、外孙子女的()。A:第一顺序
231)线路光纤差动保护的基本原理是比较被保护线路两侧电流幅值大小。()
2021年1—4月份,规模以上非金属矿物制品业利润总额同比增量约是非金属矿采
A.运动员只在a到b的过程中,对铅球做了功 B.在b到d的过程中,铅球的机械能
多品种小批量型生产的特征之一是()。A.生产重复程度极高 B.生产过
最新回复
(
0
)