- 閱讀理解A
題干：Thankstoslumpingmarkets,investmentbanksaresheddingmanyoftheirhighly-paidtraders.Whenmarketsrecover,thebanksmightbetemptedtoreplacethemwithrathercheapertalent.Onealternativehasbeenaroundforawhilebuthasyettocatchon:autonomoustradingagents—computersprogrammedtoactlikethehumanversionwithoutsuchpeskycostsasholidays,lunchbreaksorbonuses.Programtradinghas,ofcourse,beendonebefore;someblamedthe1987stockmarketcrashoncomputersinstructedwithsimpledecision-makingrules.Butrobotscanbesmarterthanthat.DaveCliff,aresearcheratHewlett-PackardLaboratoriesinBristol,England,hasbeencreatingtradingrobotsforsevenyears.Incomputersimulationsheletsthemevolve"genetically",andsoallowsthemtoadaptandfitmodelsofreal-worldfinancialmarkets.Hisexperimentshavesuggestedthataredesignofsomemarketscouldleadtogreaterefficiency.Lastyear,aresearchgroupatIBMshowedthatMrCliff'sartificialtraderscouldconsistentlybeatthehumanvariety,invariouskindsofmarket.Nearlyalltaketheshapeofanauction.Onewell-knowntypeistheEnglishauction,familiartopatronsofthesalesroomsofChristie'sandSotheby's,wheresellerskeepmumontheirofferprice,andbuyersincreasetheirbidsbystagesuntilonlyoneremains.AttheotherextremeistheDutchauction,familiarto17th-centurytulip-tradersintheNetherlandsaswellastobiddersforAmericanTreasurybonds.Here,buyersremainsilent,andasellerreduceshispriceuntilitisaccepted.Mostmarketsforshares,commodities,foreignexchangeandderivativesareahybridofthesetwotypes:buyersandsellerscanannouncetheirbidorofferpricesatanytime,anddealsareconstantlybeingclosed,aso-called"continuousdoubleauction".MrCliff'snovelideawastoapplyhisevolutionarycomputerprogramstomarketplacesthemselves.Whynot,hethought,tryandseewhattypesofauctionwouldlettradersconvergemostquicklytowardsanequilibriumprice?Theresultsweresurprising.Inhismodels,auctionsthatletbuyersandsellersbidatanytimelikemostoftoday'sfinancialexchangeswerelessefficientthanonesthatrequiredrelativelymorebidsfromeitherbuyersorsellers.These"evolvedauctions"alsowithstoodbigmarketshocks,suchascrashesandpanics,betterthantoday'sreal-worldversions.MrCliff'smostrecentresults,whichwillbepresentedinSydney,Australia,onDecember10th,showthatthebesttypeofauctionforanymarketdependscruciallyonevenslightdifferencesinthenumberofbuyersandsellers.BankofAmericahasbeeninvestigatingthesenewauctions,alongwithrobotictraders,forpossibleuseinelectronicexchanges.Thehopeisthattoday'sfinancialauctionsandonlinemarketplacesmightworkbetterbybecomingmoreliketheirEnglishandDutchforebears.Butwhattocallsuchmulti-ethnichybrids?Here'sintroducingthe"Cliffhanger".
題目： If you were trading American Treasury bonds, you would most likely take the trading form of（）. - A 、the English auction
- B 、the continuous double auction
- C 、the Dutch auction
- D 、the evolved auction
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參考答案【正確答案：C】
文章第三段介紹荷蘭式拍賣時說它是“今天競拍美國國庫券競標人所熟悉的一種拍賣形式。”可見，如果交易美國國庫券，最有可能采用荷蘭式拍賣方式。
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