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
2012-11-30
69
问题
(32)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. (33)Here a machine checks and collects the tickets, and there are no workers on the platforms. On the train, there is only one worker. (34)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. (35)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.
32. What happened to the London underground railway over four decades ago?
33. Who checks and collects the tickets on the Victoria Line?
34. What is the task of the one worker on the Victoria Line train?
35. What will happen on the line if each train moves at its own speed?
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
细节推断题。短文中间部分提到,在“维多利亚线”上,每列火车上只有一位工作人员,通常只负责让火车启动,虽然他可以操纵火车,但一般情况下,火车都是自动运行的。由此可知,在“维多利亚线”上,唯一的工作人员的职责是让火车启动并在需要时进行驾驶。
转载请注明原文地址:https://kaotiyun.com/show/Cgb7777K
0
大学英语六级
相关试题推荐
Scienceisthesystematic_________ofknowledgeusingnatureitselforlaboratorymodelsandexperiments.
Thenewmanagerhadmanydifficultiestoovercomebuthetookthemallinhis______.
Thisdiploma______thatyouhavecompletedhighschool.
Agoodteachermustknowhowto_________hisideastothestudents,asgenerallyagreedbyeducationalexperts.
The______noiseoftrafficannoyedmeanddistractedmyattentiontoreadingthedetectivestory.
Onlythe______oftheofficemanageress,whoknewofAlice’spersonaldifficultiessavedherfrombeingdismissed.
Thedivorce______speculationaboutapossiblesecondmarriage.
Thoughherparents______hermusicalability,Jerrilou’spianoplayingisreallyterrible.
Onecalledherbossa"bitchfromhell"whileanotheradmitted"lyingthroughhisteethatinterview.BoththeBritishjob【B1】__
A、Shedoubtshemakesmuchmoneynow.B、She’ssurprisedthathechosethatcompany.C、Shedoesn’tknowwhenherclassesstarted.
随机试题
患者,女性,20岁。反复头面、四肢皮疹伴痒2个月余,加重3天。患者反复于头面、四肢出现红斑、丘疹、丘疱疹等皮疹,自用糖皮质激素类药膏外涂后可减轻,但易反复。3天前饮酒后皮疹再次加重伴剧烈瘙痒。查体:头面、四肢、手等部位对称性红斑、丘疹、丘疱疹、抓痕,耳垂、
下列不属于直接式分销渠道的是:()。
当三相交流发电机的三个绕组接成星形时,若线电压,则相电压uC为下列式中的哪一个?()
图15—4—33所示刚架,EI为常数,结点A的转角是()。(提示:利用对称性和转动刚度的概念)
某项目期望在2年后获得一笔100万的投资额,在年利率为10%的情况下,每年年末应提存的金额是( )万元。
水资源规划的关系是()。
关于基金营销的特殊性,下列说法错误的是()。
同盟会的机关报_________和改良派的________是革命派与改良派论战的主要阵地。
根据合伙企业法规定,下列表述正确的是()。
设Dk是圆域D={(x,y)|x2+y2≤1)的第k象限的部分,记则().
最新回复
(
0
)