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
2023-09-10
70
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、A platform worker.
B、A computer.
C、The command spot.
D、A machine.
答案
D
解析
预览选项可知,本题考查人物身份,问题针对who提问。问题询问的是谁一直检查 Victoria铁路线的车票。根据文中提到的The stations on the other lines…collects the tickets可知,维多利亚线上用机器而不是工人进行所有检票和收票的工作,故D为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3001856.html
相关试题推荐
[originaltext]Afewmonthsago,millionsofpeopleinLondonheardalarmsa
[originaltext]Afewmonthsago,millionsofpeopleinLondonheardalarmsa
[originaltext]Afewmonthsago,millionsofpeopleinLondonheardalarmsa
[originaltext]M:Thecitycouncilhasfinallyvotedthefundstobuildanewhig
[originaltext]M:Thecitycouncilhasfinallyvotedthefundstobuildanewhig
[originaltext]M:Thecitycouncilhasfinallyvotedthefundstobuildanewhig
[originaltext]M:Thecitycouncilhasfinallyvotedthefundstobuildanewhig
[originaltext]WhenpeterandRosecametotheUnitedStatesfromthePhilip
[originaltext]WhenpeterandRosecametotheUnitedStatesfromthePhilip
[originaltext]Todayschoolchildreninmanycountrieshavehighratesoffa
随机试题
Whenthetimeisripeourschemewillbe_________.A、putinorderB、putintoeffe
Asmenage,theytypicallygetlessandlessdeepsleep—afactthatcould【B1
SafeAsHousesA)Homebuildersandbuyersarefeelinghesitant.Residentialfi
Thetrainclatteredoverpointsandpassedthroughastation.Thenitbegan
[originaltext]W:Hmm,Hi.M:Hi.I’mgoingdoortodoortonightto(22)tellpe
[originaltext]Goodevening.YouarelisteningtoPopWorldofBCDInternati
绝经妇女骨质疏松阴阳两虚证的治法是A.补肾填精益髓 B.温补肾阳,佐以滋阴
下面关于体内生物转化作用的叙述错误的是A:对体内非营养物质的改造B:使非营养物
S公司股票的看跌期权执行价格为35元,其价格为每股2元,而另一看涨期权执行价格亦
房地产抵押时,抵押物登记记载的内容与抵押合同约定的内容不一致的,根据担保法律制度
最新回复
(
0
)