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
14
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
Ascientistwhodoesresearchineconomicpsychologyandwhowantstopredic
可转换债券的发行条件包括()。A.最近3年连续盈利,且最近3年净资产收益率平均在
反映房地产市场变化的主要指标有()。A.需求量 B.投资量 C.空置率
共用题干 CellPhoneLetsYourSecretOutYou
下列购买某宗房地产的付款方式中,对买方而言最经济的是(假定年折现率为6%)( )
甲乙丙三人共同实施故意杀人,一审法院判处甲死刑立即执行、乙无期徒刑、丙有期徒刑1
某公司用两箱20英尺集装箱向A地经销商发送洗衣机,两地间运价里程为2500千米,
甲企业与运输公司签订货物运输合同,记载装卸费20万元,保险费10万元,运输费
普惠化产业政策的“普惠”特征体现在有效化解政策歧视,具体做法包括()。A.推进
根据《建设项目竣工环境保护验收技术规范生态影响类》,“工程调查”的内容不包括(
最新回复
(
0
)