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(1)____,wasnamedguardianofhistwoyoungerbrothers.AppointeddeputycourtorganisttoChristianGottlobNeefeatasurprisinglyearlyagein1782,Beethovenalsoplayedtheharpsichordandtheviola.In1792hewassenttoViennabyhispatron,CountFerdinandWaldstein,tostudymusicunderHaydn.Beethovenremainedunmarried.Becauseofirregularpaymentsfromhispublishersanderraticsupportfromhispatrons,____(2)____.Continuallyplaguedbyillhealth,hedevelopedanearinfectionwhichledtohistragicdeafnessin1819.Inspitedofthishandicap,____(3)____.Hecompletedmaturemasterpiecesofgreatmusicaldepth:threepianosonata,fourstringquartets,theMissaSolemnis,andthe9thSymphony.Hediedin1827.Hislifewasmarked____(4)____.(5)____,hismusicshowsgreatdisciplineandcontrol,andthisishowwerememberhimbest.Ahowever,hecontinuedtowritemusicBhewastroubledbyfinancialworriesthroughouthisadultlifeCbyapassionatededicationtoindependenceDthenayoungmanEmayhavebeenuntamedFhismusichasbeenlovedoverthepastcenturies答案:DBACEShouldtheU.S.halthumanspaceflight?TheColumbiaaccidenthasrevivedthedebateonwhethertherewardsofhumanspaceexplorationareworththerisksNo.Iwasateacherwhenmenfirstlandedonthemoonin1969,andIrememberhowitmovedmystudentsandthiscountry.__________(46)Andwehaven'tventuredoutwardsincethen.That's30yearstoolong!America'shumanspace-flightprogramisadrift,withnoclearvisionorgoalsbeyondthecompletionoftheInternationalSpaceStation.(47)Anastronautistoday'sChristopherColumbus,whosailedintotheunknownanddiscoveredtheAmericas.Theknowledgewegainfromhavingactualpeopleexploringcanneverbereplacedbyrobots.__________(48)Robotsareuseful,buthumanscandothingsthatrobotscan't.Therealobstaclewefaceinovercomingthedriftinthenation'shumanspace-flightprogramisnottechnologicalandit'snotfinancial.__________(49)ThelessonfromtheColumbiaaccidentisnotthathumansdon'tbelonginspace.______(50)AInstead,weshouldhonorthememoryofthelostastronautsbypushingourexplorationofspacefuture.BAstronautsarekeytothisexpandedexploration.CIt'sthelackofcommitmenttogetstarted.DUntilthen,weshouldstopriskingpeople'slivesbysendingthemintospace.EItisnowmorethan30yearssincethelastAmericanleft参考答案：EBFCAThefirstfourminutesWhendopeopledecidewhetherornottheywanttobecomefriends?Duringtheirfirstfourminutestogether,accordingtoabookbyDr.LeonardZunin.Inhisbook,Contact:Thefirstfourminutes,heoffersthisadvicetoanyoneinterestedinstartingnewfriendships:__1__.Alotofpeople'swholeliveswouldchangeiftheydidjustthat.Youmayhavenoticedthataveragepersondoesnotgivehisundividedattentiontosomeoneheasjustmet.__2__.Ifanyonehaseverdonethistoyou,youprobablydidnotlikehimverymuch.Whenweareintroducedtonewpeople,theauthorsuggests,weshouldtrytoappearfriendlyandself-confident.Ingeneral,hesays,Peoplelikepeoplewholikethemselves.Ontheotherhand,weshouldnotmaketheotherpersonthinkwearetoosureofourselves.Itisimportanttoappearinterestedandsympathetic,realizingthattheotherpersonhashiswonneeds,fears,andhopes.://