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
2023-09-14
34
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://tihaiku.com/zcyy/3014745.html
相关试题推荐
[originaltext]W:ABCDeliveryService!WhatcanIdoforyou?M:Hello!Iwantto
[originaltext]W:ABCDeliveryService!WhatcanIdoforyou?M:Hello!Iwantto
[originaltext]W:Goodmorning,Bill!Pleasehaveaseat.Myname’sJeanSmith,H
[originaltext]M:Howwasyourwintervacation,Amy?W:Great!Ispentthewholet
[originaltext]M:Mary,wouldyoupleaseworkoutaschedulefortomorrow’smeet
[originaltext]M:Iboughtthiswashingmachinelastweek.Butitisnotworking
[originaltext]W:YouthTravelAgency!WhatcanIdoforyou,sir?M:I’vereadyo
[originaltext]W:I’mlosingmysleep.Ifeeltiredandsleepyallthetime.
[originaltext]W:I’dliketotalktoMr.Smith.M:He’snotherebutMr
[originaltext]M:Iheardyouhadacceptedanofferfromabigcorporation.
随机试题
Thepassageismeantto______.[br]Whydidtheauthorbegintodoubthimselfa
GettingtheBestValueforTimeAreyousatisfiedwith
[originaltext]A:Soinsomeway,we’rejustgoingtohavetogetusedtothat..
现代中国人的姓名通常由姓(家庭姓氏)和名(个人所起的名字)组成,并且姓在前,名在后。因此,王小平被称为王先生,个人的名字为小平。但是,在中国古代,起名非
居住区内公共活动中心,应设置残疾人通道,其宽度最小值和纵坡最大值的设计应符合下面
完全竞争市场具有的特征有()。A.每个生产者和消费者都只能是市场价格的接受者,
胁痛肝胆湿热证的临床特征是( )。A.胁肋灼痛,口苦口黏 B.胁肋胀痛,胸闷
东北某村将甲地400亩和乙地600亩共1000亩租赁给公司耕种。同时约定按照以年
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
电信管制的管制对象为()。A.电信企业 B.电信市场 C.电信企业和电信市场
最新回复
(
0
)