现代铁路信号系统主要由哪些部分组成?
现代铁路信号系统主要由区间信号、车站信号、行车指挥自动化、列车运行自动化、驼峰调车控制、铁路道口防护、防护报警及可靠性和故障安全原则等组成。
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结合中国商品流通领域实际,论述建立与规范商业道德的重要意义和作用。
什么是配送?物流与配送的差别主要体现在哪些方面?
她有能力做这项工作。(ability)
名词解释:E-R图
论述消费者市场的购买决策流程。
Inwhatseemsliketheprehistorictimesofcomputerhistory;theearth’spostwarera,therewasquiteawidespreadrumorthatcomputerswouldtakeovertheworldfrommanoneday.Alreadytoday,lessthanfiftyyearslater,ascomputersarerelievingusofmoreandmoreoftheroutinetasksinbusinessandinourpersonallives,wearefacedwithalessdramaticbutnotlessforeseenproblem.Peopletendtobeover-trustingofcomputersandarereluctanttochallengetheirauthority.Indeed,theybehaveasiftheywerehardlyawarethatwrongbuttonsmaybepushed,orthatacomputermaysimplymalfunction.Obviously,therewouldbenopointininvestinginacomputerifyouhadtocheckallitsanswers,butpeopleshouldalsorelyontheirowninternalcomputersandcheckthemachinewhentheyhavethefeelingthatsomethinghasgonewrong.Questioningandroutinedouble-checksmustcontinuetobeasmuchapartofgoodbusinessastheywereinpre-computerdays.Maybeeachcomputershouldcomewiththewarning:forallthehelpthiscomputermayprovide,itshouldnotbeseenasasubstituteforfundamentalthinkingandreasoningskills.
37.Accordingtothepassage,theauthorwouldprobablydisapproveof__________.
A.investmentincomputers
B.completedependenceoncomputers
C.double-checkoncomputers
D.theuseofcomputer
38.Intheauthor’sopinion,peopleshould__________.
A.bereasonablydoubtfulaboutcomputers
B.usecomputersforbusinesspurposesonly
C.substitutecomputersforbasicthinking
D.checkalltheiranswerswhenusingcomputers
39.Whatissuggestedinthispassage?
A.Computerwon’tchangeourpersonallives.
B.Computercancreateunforeseenproblems.
C.Computerhastakencontroloftheworld.
D.Computercannotaffectourbusinesses.
40.Whatisthemainpurposeofthispassage?
A.Tolookbacktotheearlydaysofcomputers.
B.Toexplainwhattechnicalproblemsmayoccurwithcomputers.
C.Todiscourageinvestmentincomputers.
D.Towarnagainstamentallylazyattitudetowardscomputers.
名词解释:广告
翻译:smartcards
简述产品型销售组织的优点和缺点。
名词解释:补偿贸易