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.

与电子商务战略相比，电子商务策略具有的特征是（）

ProfessorTate__________abouthim.

名词解释：广义电子商务法

下列关于对称加密叙述不正确的是（）