首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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 t
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 t
admin
2010-09-25
71
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
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://kaotiyun.com/show/8jz7777K
0
大学英语六级
相关试题推荐
A、Gettinghelpfromothers.B、Alwaystryingnewmethods.C、Dependingonmodernmachines.D、Trustingtheirownideas.D事实细节题文中提到
EffortstoProtecttheEnvironmentMostscientistsagreethatifpollutionandotherenvironmentaldeterrents(威慑)continue
A、Classmates.B、Bossandsecretary.C、Husbandandwife.D、Teacherandstudent.C人物关系判断题通过对话中的关键词home可以判断双方是夫妻关系。
A、Hedoesn’tlikethenovel.B、Heisinterestedinthenovel.C、Hehasjuststartedreadingit.D、Hecouldn’tputitdown.B
There__________________(对奥斯丁的诚实存有怀疑),thecompanyaskedhimtoresign.
Teachersbelievethatstudents’responsibilitywithlearningisnecessary.【S1】______.Ifalongreadingassignmentisgiv
Teachersbelievethatstudents’responsibilitywithlearningisnecessary.【S1】______.Ifalongreadingassignmentisgiv
A、Hehatestopack.B、Hedoesn’tliketorestricthisdiet.C、Hefeelsrushed.D、He’sworriedabouthislecture.B
随机试题
某村庄的村民,食用发霉粮食后,突发一过性发热、呕吐、厌食,随后出现黄疸、水肿,到医院检查有肝功能异常。患病村民可能是
A.归脾汤B.酸枣仁汤C.天王补心丹D.朱砂安神丸E.甘麦大枣汤
A.外毒素B.菌毛C.鞭毛D.荚膜E.芽胞肺炎链球菌的主要致病物质是
不能用其蒸气灭菌的是
以下属于无民事行为能力人的是()。
城镇职工基本医疗保险实行( )。
冲击疗法的治疗协议包括()。
劳动经济学的研究对象包括()。
根据下列材料回答问题。2012年,F省社会保险工作年度目标任务如下:城镇基本养老保险目标任务为725.00万人,城镇基本医疗保险目标任务为1260.00万人,失业保险目标任务为428.50万人,工伤保险目标任务为504.00万人,生育保险目标任务为453
Giventhechoice,youngerprofessionalsaremostinterestedinworkingattechcompanieslikeAppleandgovernmentagencieslike
最新回复
(
0
)