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、A platform worker. B、A computer. C、The command spot. D、A machine. DWho does all the checking and collecting tickets on the Vic
A、A platform worker. B、A computer. C、The command spot. D、A machine. DWho does all the checking and collecting tickets on the Vic
admin
2009-08-19
89
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
Who does all the checking and collecting tickets on the Victoria Line?
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://kaotiyun.com/show/ZupK777K
0
大学英语六级
相关试题推荐
A、Husbandandwife.B、Waitressandguest.C、Bossandsecretary.D、Doctorandpatient.B题目问的是这两个说话人之间可能是什么关系。女士说:“先生,您好。现在可以点菜了吗?
Ifyouwishtoapplyforastudentvisa,youshouldfillinFormIM2AwhichyoucangetfreeofchargefromthenearestBritish
Thefollowingisalistoftermsrelatedtoautomobile.Afterreadingit,youarerequiredtofindtheitemsequivalenttothose
A—multimediamessageserviceJ—fixeddialB—subscriberidentitymoduleK—automaticredialC—voicepromptL—two-waychargin
TheWhiteHouseisthemostvisitedresidenceintheworld.ToursmaybescheduledthroughourWashingtonDCoffice.Duetosecu
Smartjobseekersneedtoridthemselvesofseveralstandardmythsaboutinterviewingbeforetheystartlookingforajob.What
A—multimediamessageserviceJ—fixeddialB—subscriberidentitymoduleK—automaticredialC—voiceprompt
A、Hethinksit’smainlyforchildren.B、Hefeelsitwouldbeworthwhile.C、Hebelievesitistoocomplicated.D、Hethinksitmay
TheSupremeCourtoftheUnitedStatesmadeanimportantrulein1954.Itwasthatpublicschoolsneededtobe(36)______.Child
A、Becauseitservesonlyafewspecialties.B、Becauseit’stoocrowded.C、Becauseit’stoocostly.D、Becausetheserviceistoo
随机试题
对确诊SLE和判断其活动性参考价值最大的抗体是
(2005年第149题)男性,62岁,胃溃疡多年,2个月来上腹痛发作频繁,无规律,食欲下降。该患者需要进行的检查有
女,52岁,乏力,腰痛,夜尿增多2年,查BP20/12kPa(150/90mmHg),尿常规:蛋白(+),红细胞管型3~4个/HP,白细胞5~10个/HP,尿素氮7mmol/L,肾盂静脉造影:两侧肾脏大小不一,表面凸凹不平经系统正规用抗生素治疗8个月,
非选择性环加氧酶抑制药有
(2011)图1.5—18所示电路中,换路前已达稳态,在f=0时开关S打开,欲使电路产生临界阻尼响应,R应取()。
未来润滑油有限公司是一个新建立的生产高级润滑油的小型化工企业。该企业生产的润滑油主要适合于运输工具及热力机械使用。现在公司需要决定采用何种方式才能有效地销售其产品。公司经过调查发现,其他生产同类产品的企业所采用的销售渠道主要是向各地石油公司、燃料
甲公司与乙公司共同出资设立丙公司,经甲、乙双方协议,丙公司的董事长由乙公司委派,甲方的出资比例为55%,股东按出资比例行使表决权。在这种情况下()。
当前我国博客数量超过2000万,“我的博客我做主”,在博客自由的背后,是公共责任与法律底线,这说明()。
下列关于栈的叙述中,正确的是
ThecurrentemergencyinMexicoCitythathastakenoverourlivesisnothingIcouldeverhaveimaginedformeormychildren.
最新回复
(
0
)