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
2024-06-14
62
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/3633597.html
相关试题推荐
[originaltext]Eachdayweallmakemanychoices;mostofthesechoicesare
[originaltext]Eachdayweallmakemanychoices;mostofthesechoicesare
[originaltext]Eachdayweallmakemanychoices;mostofthesechoicesare
[originaltext]Peoplehavebeenpaintingpicturesforatleast30,000years.
[originaltext]Peoplehavebeenpaintingpicturesforatleast30,000years.
[originaltext]Aroundtheworldmoreandmorepeoplearetakingpartindang
[originaltext]Aroundtheworldmoreandmorepeoplearetakingpartindang
[originaltext]W:Hello,listeners!Welcometoourprogram.Ourtoday’sguestis
[originaltext]BelfastistheCapitalofNorthernIslandandamajorcityin
[originaltext]BelfastistheCapitalofNorthernIslandandamajorcityin
随机试题
(1)Ah,praise.Sopowerfularesimplewordsofapprovalandadmirationthat
ThepeopleoftheUSAhavebeenopposedtoacentralizedgovernmentsincelo
ETF申购赎回中的现金替代不包括以下哪种类型?()A.必须现金替代 B.现金
同一劳动在同一时间内,当部门劳动生产率提高时会使( )。A.单位商品的价值量降
被宣告缓刑的犯罪分子,在缓刑考验期限内( ),应当撤销缓刑。 A.违反法律、
人民法院受理支付令申请后,经审查债权人提出的事实、证据,认为债权人的申请不符合
双侧髁突骨折后出现髁突明显移位伴开的合理治疗方法是A.单侧固定+颅颌弹性绷带
因第三者对保险标的的损害而造成保险事故的,保险人自()之日起,在赔偿金额范围内
等额分付资本回收系数记为()A.(F/A,i,n) B.(A/F,i,n)
在投资控制动态过程中,应着重做好的工作有()。A.对计划目标值的论证和分析
最新回复
(
0
)