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
31
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
她是几个通过考试的学生之一。Sheisoneofthefewstudentswhohavepassedtheexam.本句的先行词few
DuringtheH1N1flupandemic,schoolsclosed,healthofficialsencouragedha
[originaltext]Afewyearsago,IfeltlikeIwasstuckinarut,soIdecid
Thephenomenonthatlearner’sL1knowledgecanfacilitateL2acquisitionisknow
Angerisanemotionthatcanbedifficulttodealwith.Sometimesit’sexper
DIC的筛选检查包括()A.凝血酶时间测定 B.维蛋白降解产物(FDP)测
表中最靠近赤道的四个城市,其年均降水量的均值为:A.1747毫米 B.17
1999-2002年,服务业企业景气指数与企业家信心指数差距最大和最小的季度
下列叙述不是造血祖细胞的主要特征的有A:具有高度增殖能力B:高度的自我更新能力
根据《建设工程质量管理条例》,下列不属于建设单位需要办理的是()。A.开工
最新回复
(
0
)