Questions61to65arebasedonthefollowingpassage:IntheyearfollowingtheCivilWar,businessesbegantoformmonopolies（垄断）.Amonopolyisabusinessorcorporationthathasexclusivecontroloveracertainmarket.Thismeansthatamo

　　Questions61to65arebasedonthefollowingpassage:

　　IntheyearfollowingtheCivilWar,businessesbegantoformmonopolies（垄断）.Amonopolyisabusinessorcorporationthathasexclusivecontroloveracertainmarket.ThismeansthatamonopolyhasnocompetitorsInbusiness,competitionamongbusinessestendstokeepthepricesofproductsdown.Sincetheyhadnocompetitors,monopolies,dependingonhowessentialtheirproductwas,couldchargeasmuchastheywantedfortheirproduct.Asmoreandmoremonopoliesbegantoappear,someAmericansbegantowonderhowthesebigcompaniescouldsoeasilydrivetheircompetitorsoutofbusiness.OnepersonwhowasespeciallyinterestedinthepracticesofthesemonopolieswasajournalistnamedIdaTarbell.Duringtheearly1900's,IdaTarbell'sarticlestookonsuchbigcorporationsastheStandardOilTrustCompany.Shedescribedthemethodsthatthesemonopolieswouldusetodriverivalcompaniesoutofbusiness.Forexample,shedescribedhowbigcompanieswouldmakedealswithrailroadcompanies.(Accordingtothetermsofthesedeals,therailroadcompanieswouldchargethebigcompanieslowerratestotransportgoods.)Smallercompanieswhocompetedwiththebigcompanieswouldbechargedtheregularrate,whichwasmuchhigher.

　　61.Whatisthepassagemainlyconcernedwith?

　　A.Thedefinitionofmonopolies.B.Thesuccessofmonopolies.

　　C.Thereasonsforthesuccessofmonopolies.D.BothB.andC.

　　62.Amonopolyisabusinessthatcontrolsthemarket,________.

　　A.beatingallothercompetitorsB.includingonlyafewcompetitors

　　C.excludingmanyrivalsD.noneoftheabove

　　63.63.Ifamonopolywantstochangeasmuchaspossible,__________.

　　A.itmusthavecompetitorsB.itmustbeabigbusiness

　　C.itsproductsmustbeindispensabletopeopleD.itsproductsmustbeofhighquality

　　64.64.Tarbell'sarticlesaremainlyconcernedwith_________.

　　A.thecompetitivepowerofbigcompaniesB.thecompetitivemethodsbybigcompanies

　　C.thedirtydealsbetweenbigandsmallcompaniesD.thedirtydealsbetweenbigcompaniesandrailroadcompanies

　　65.Theword"terms"inParagraph4means____________.

　　A.conditio