北语18秋《阅读》（II）作业4（含答案）资料

18秋《阅读》（II）作业4

北语作业答案
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一、单选题：
1.[单选题]NoonethoughtofanythingevenalittlebitlikethezipperuntilWhitecombL.Judsoncamealong.Therewerebuttonsandbutton-holes,hooksandeyes,lacesandbuckles.Theyalltookanirritatinglylongtimetodoup,especiallywhenmenworehigh-lacedbootsandfashionableladiessqueezedthemselvesintolongcorsets.WhitecombL.Judson＇sslide-fastenerwasanout-of-the-blueinvention,andnooneknowswhatgavehimtheidea.Nooneevenknowsmuchabouthim,exceptthathewasamechanicalengineerlivinginChicagoandthathepatentedotherinventions,todowithastreetrailwaysystemandmotor-cars.Judsoninventedthefirstzipper(called,atthetime,aClaspLockerorUnlocker)in1891.Thisingeniouslittledevicelookssosimple,andtheprinciplebehinditissimple:onerowofhooksandeyesslottingneatlyintoanotherrowbymeansofatab.Yetittook22years,manyimprovementsandanotherinventortomakethezipperreallypractical.问题：BeforeJudsoninventedthezipper,peoplefoundbuttoningclothestobe()          (满分:)
    A. interesting
    B. burdensome
    C. easy
    D. comfortable
    正确答案:——B——
2.[单选题]Inthe(haze)Isawtwoofmytrekmates.          (满分:)
    A. darkness
    B. light
    C. thinmist
    D. heavysmog
    正确答案:——C——
3.[单选题]The12thlunarmonthinChineseiscalledlayue(themonthtoworshipallthedeities).The8thdayofthe12thelunarmonthistheLabaFestival.ItistreatedasthebeginningoftheChineseholidayseason.AftertheLabaFestival,peopleenterintothebusypreparationfortheLunarNewYear.ThemainactivityoftheLabaFestivaliscookingandsharingthespeciallabagruel(laba-zhou).MostpeoplebelieveithasacloserelationtoSakyamuni,theBuddha.Helefthiscomfortablehomeandsetoffinsearchofthefinalenlightenment.Afterdaysoftravellingwithoutrest,hecollapsednearariverinnorthernIndia.Hewasrevivedbyawanderingshepherdess,whoofferedhimherlunchoffamilyleftoversconsistingofstickycereal,glutinousrice,dates,chestnutsandwildfruit.Afterconsumingthisrepast,Sakyamunitookabatchandsatunderatreeformeditation,wherehefinallyattainedenlightenment.Theverydaywasthe8thdayofthelastlunarmonth.Themealwastheoriginallabagruel.问题：Sakyamuniateamealwhichwasmadeofallthefollowingexcept()          (满分:)
    A. wildfruit
    B. rice
    C. cereal
    D. meat
    正确答案:——D——
4.[单选题]Astronomers（天文学家）cantelljusthowhotthesurfaceofthemoongets.Thesideofthemoontowardthesungetstwodegreeshotterthanboilingwater（沸水）.Thenightsidereaches243degreesbelowzero（零度）.Inaneclipse（月蚀）,theearth'sshadowfallsonthemoon.Thenthemoon'stemperaturemaydrop300degreesinaveryshorttime.Atemperaturechangelikethiscannothappenontheearth.Whydoesithappenonthemoon?Astronomersthinkthatthesurfaceofthemoonisdust.Ontheearth,rocksstoreheatfromthesun.Whenthesungoesdown,therocksstaywarm.Butthedustofthemooncannotstoreheat.Sowhenthemoongetsdark,theheatescapesquickly.Themoongetsverycold.问题：Astronomershavefoundthatthemoon'ssurfaceis（）          (满分:)
    A. alwayshotterthanboilingwater
    B. eitherveryhotorverycold
    C. usuallymanydegreesbelowzero
    D. aboutthesameasthatoftheearth
    正确答案:————
5.[单选题]WhileIwasworkingasachildpsychologist,aprincipalphonedme."I'mbaffled,"hesaid."Achildhaswrittenanessaycalled‘ThePropertiesoftheNucleus.’"Histeachercan'tunderstandit.NeithercanI."IwenttotheschoolandmetMark,aneight-year-oldwithgingerhairandfreckles.Helookedlikeaveryordinaryboytome.Iproceededwiththeintelligencetest."WhatisMars?"Iasked.Mostchildrenhisagesay,"Achocolatebar."Hedescribedtheplanetindetail.Hequicklycompletedthetests,includingamathtestformucholderchildren.Thenhelookedatmeasiftosay:"Can'tyoucomeupwithsomethingmoredifficult?"Ihadseengiftedchildrenbefore,butthisboywas"offthemap"asfarasassessinghisIQwasconcerned.Mark'sprincipleandarrangedforMarktobetutoredbyascienceteacher.Butinmanywayshewasjustanormalchild.Wewantedhimtobesociallyadjustedaswellasintellectuallyoutstanding.SowealsoencouragedhimtojointheClubScoutsandwekepthiminclasswithkidsofhisageforthetimebeing.IaskedMark'sparentswhattheythoughtofhim."Hecanbeapainintheneck,"hismothersaid."Heaskssuchimpossiblequestions,"shesmiled."Butwelovehimdearly."Thiswascrucial.Liketherestofus,giftedchildrenneedtobeloved.Hegainedafirst-classhonorsdegreefromCambridge,isnowchairmanofhisowncomputercompanyandishappilymarriedwithtwochildren.问题：Theboy'sparentslookedupontheirsonas()          (满分:)
    A. arealgenius
    B. anormalboy
    C. amischievousboy
    D. aboythatneedslove
    正确答案:————
6.[单选题]MostAmericansthinkthaticecreamisasAmericanasbaseballandapplepie.ButicecreamwasknownlongbeforeAmericanwasdiscovered.TheRomanemperorNeromayhavemadeakingoficecream.Hehiredhundredsofmentobringsnowandicefromthemountains.Heusedittomakecolddrinks.TravelerMarcoPolobroughtbackrecipesforchilledandfrozenmilkfromChina.Hundredsofyearslater,icecreamreachedEngland.ItissaidthatKingCharlesIenjoyedthattreatverymuch.Thereisastorythathebribedhiscooktokeeptherecipeforicecreamaroyalsecret.Todayicecreamisknownthroughouttheworld.Americansaloneeatmorethantwobillionquartsayear.问题：MarcoPoloisknownas()          (满分:)
    A. aRomanemperor
    B. theinventoroficecream
    C. aroyalcook
    D. atravelertoChina
    正确答案:————
7.[单选题]Twobasicmodelsofparentalinfluenceemergefromallthiscompetitionandvariety,however.One,looselybasedonFreudianideas,haspresentedanimageofthevulnerablechild:childrenaresensitivebeings,easilydamagednotonlybytraumaticeventsandemotionalstress,butalsobyoverdosesofaffection.The2ndmodelisthatofthebehaviorists,whoseintellectualancestors,theempiricistphilosophers,describedthechild'smindasatabularasa,orblankslate.Thebehavioristmodelofchild-rearingisbasedontheviewthatthechildismalleable,andparentsarethereforecastintheroleofPygmalionswhocanshapetheirchildrenhowevertheywish."Givemeadozenhealthyinfants,well-formed,andmyownspecifiedworldtobringthemupin,"wroteJ.B.Watson,thefatherofmodernbehaviorism,"andI'llguaranteetotakeanyoneatrandomandtrainhimtobeanytypeofspecialistImight-doctor,lawyer,artist,merchant,chief,andyes,evenbeggarmanandthief!"Theimageofthevulnerablechildcallsforgentleparentswhoaresensitivetotheirchild'sinner-mostthoughtsandfeelingsinordertoprotecthimfromtrauma.Theimageofthemalleablechildrequiresstemparentswhocoollyfollowthedictatesoftheirownexplicittrainingprocedures:onlytheearlyeradicationofbadhabitsineating,sleeping,crying,canfendoffpermanentmaladjustments.问题：Theimageofthemalleablechildneedsparentswhoare()          (满分:)
    A. tender
    B. sensitive
    C. moderate
    D. strict
    正确答案:————
8.[单选题]TheinventorofspectaclesprobablylivedinthetownofParis,Italy,around1286,andwasalmostcertainlyacraftsmanworkinginglass.Butnobodyknowshisname.WeonlyknowthismuchabouthimbecauseFriarGiordanepreachedasermononeWednesdaymorninginFebruary1306atachurchinFlorence."It＇snotyet20yearssincetherewasfoundtheartofmakingeye-glasseswhichmakeforgoodvision,"saidtheFriar."Oneofthebestartsandmostnecessarythattheworldhas.Soshortatimeisitsincetherewasinventedanewartthatneverexisted.Ihaveseenthemanwhofirstinventedandcreatedit,andIhavetalkedtohim."WeknowwhatFriarGiordanesaidbecauseadmirerscopiedhissermonsdownashegavethem.Theinventorofspectaclesapparentlykeptthemethodofmakingthemtohimself.Perhapshethoughtthiswasthebestwayofgettingmoneyfromhisinvention.Buttheideasoongotaround.Asearlyas1300,craftsmeninVenice,thecentreofEurope＇sglassindustry,weremakingthenew"disksfortheeyes".Spectaclesatfirstwereonlyshapedforfar-sightedpeople.Concavelenses,forshort-sightedpeople,werenotdevelopeduntilthelate15thcentury.Spectaclesallowedpeopletogoonreadingandstudyinglongafterbadeyesightwouldnormallyhaveforcedthemtogiveup.Theywerelikeanewpairofeyes.Theinventorofsuchavaluablethingshouldbehonored,everyonethought.Butforcenturiesnoonehadanyideawhotheinventorreallywas.Soallkindsofcandidateswereputforward:Dutch,English,German,Italiansfromrivalcities.AfakememorialwaserectedlastcenturyinachurchinFlorencetohonoramanasthetrueinventorofspectacles-butheneverevenexisted.问题：Thefirstspectalcesweremadefor()          (满分:)
    A. anyonewhohadaneyetrouble
    B. thefar-sighted
    C. theshort-sighted
    D. boththefar-sightedandtheshort-sighted
    正确答案:————
9.[单选题]MostAmericansthinkthaticecreamisasAmericanasbaseballandapplepie.ButicecreamwasknownlongbeforeAmericanwasdiscovered.TheRomanemperorNeromayhavemadeakingoficecream.Hehiredhundredsofmentobringsnowandicefromthemountains.Heusedittomakecolddrinks.TravelerMarcoPolobroughtbackrecipesforchilledandfrozenmilkfromChina.Hundredsofyearslater,icecreamreachedEngland.ItissaidthatKingCharlesIenjoyedthattreatverymuch.Thereisastorythathebribedhiscooktokeeptherecipeforicecreamaroyalsecret.Todayicecreamisknownthroughouttheworld.Americansaloneeatmorethantwobillionquartsayear.问题：Morethan2billionquartsoficecreamhavebeeneaten()          (满分:)
    A. byAmericansinoneyear
    B. allovertheworldinoneyear
    C. sincethetimeofNero
    D. sinceAmericawasdiscovered
    正确答案:————
10.[单选题]Atthe1908OlympicsinLondontheMarathonracewasheldonaveryhotday.TheracestartedatWindsorCastle,oneofthehomesoftheRoyalFamily,sothattheRoyalchildrencouldseetherunnersleave.Theracewasplannedtocontinuefor26miles385yards(42,195metres),nowtheaccepteddistanceforthisrace,intoCentralLondon.Becauseofthegreatheat,however,manyrunnershadtogiveupbeforetheycouldfinishtherace.Towardstheend,thelargecrowdwaitedwithgreatexcitementfortheSouthAfrican,CharlesHefferon,tocomeintothestadiumfirst.Theyweresurprised,however,whenthe1stmantoappearwasthesmallItalian,PietriDorando.Dorandowasbynowextremelytiredandweakand,ashewasrunningroundthestadiumtowardsthefinishingline,hefelltothegroud,unabletocontinue.Doctorsrushedtohelphimandhesoongottohisfeetandcontinued,withloudcheersfromthecrowd.Ashecameclosetothelinehehadtobehelpedagain,thistimebyajournalist,butfinallyhefinishedtherace.Hewasnot,ofcourse,allowedtoreceivethegoldbecausehehadhadhelpduringtherace.Afterwards,Dorandoarguedunsuccessfullythathehadnotaskedforthishelp.ButthemedalwasgiventoanAmerican,Hayes,whohadfinishedsecond.However,DorandolaterreceivedaspecialgoldcupfromQueenAlexandraforhiscourage.问题：agoodtitleforthepassageis()          (满分:)
    A. Dorando,herooftheOlympics
    B. Dorando,thefastestrunner
    C. AMarathonraceheldonahotday
    D. whowasthe1strunner?
    正确答案:————
11.[单选题]Atfirst,shewasalmostalarmingly(apathetic)andseemedtobetotallyuninterestedinmyvisit.          (满分:)
    A. active
    B. indifferent
    C. emotional
    D. enthusiastic
    正确答案:————
12.[单选题]"Anothergrayday,grayandgloomy,"shemuttered,thoughreallytherainwasmorethanwelcomeafterlastyear's(drought).          (满分:)
    A. lackofrain
    B. heavystorm
    C. strongwind
    D. heavysnow
    正确答案:————
13.[单选题]ThehistoryoftheWinterGames,however,hasbeenevenmoretroubledthanthatoftheSummerGames.Until1924allthewintersportscompetitions,heldevery4yearsfrom1901to1917andagainin1992,hadbeenintheScandinaviancountries-Sweden,NorwayandFinland.ThesportsmenofthesecountriesbelievedthattheWinterGamescouldonlybeheldintheScandinavianway.Coubertin,himself,wasagainstaseparateWinterOlympicsashefeltthattheywouldcausetroublewithintheOlympicmovement.However,aswinterholidaysintheAlpsbecamemoreandmorepopular,sodidtheideaofatrulyinternationalWinterGames.ThefirstWinterOlympicswereheldinChamonixin1924,thoughtheywereonlyrecognizedbytheInternationalOlympicCommitteeas"Olympic"twoyearslaterin1926.Althoughthereweremanyargumentsbeforethem,the1stGameswereasuccess,buttheproblemsdidnotendthere.In1935,itwasdecidedbytheIOCthatskiteacherscouldnotcompeteintheOlympicsbecausetheywereprofessionals.ThiscausedabigargumentbetweentheIOCandtheInternationalSkiFederation,whoagreedwiththeskiteachersand,asthetwoorganizationscouldcometoanendverysoonaftertheirbeginning.However,warcameandwithitanendtothediscussions.Whenthewarwasfinallyover,theWinterGameswerestartedupagain,asbefore,inStMoritzin1948andthecrisishadpassed.问题:theabovepassagemainlydiscusses()          (满分:)
    A. thebirthofthewinterOlympics
    B. theproblemsoftheWinterOlympics
    C. thehistoryoftheWinterOlympics
    D. thenecessityforaseparateWinterOlympics
    正确答案:————
14.[单选题]Newmeasurementstakenfromsleepingpeopleexplain,atleastinpart,whydreamstendtohavesuchbizarrebutvividstorylines.ThefindingsdealablowtotheFreudianinterpretationofdreamsbutleaveopenthepossibilitythatsomeusefulpersonalmeaningcanbeextractedfromthem.Themainpurposeofdreams,however,theauthorsofthenewstudybelieve,istotestwhetherthebrainhashadenoughsleepand,ifso,towakeitup.Thenewresultsshowthatinsleep,thefrontallobesofthebrainareshutdown.Intheabsenceofactivityintheselobes,whichintegrateotherinformationandmakesenseoftheoutsideworld,thesleepingbrain'simagesaredrivenbyitsemotionalcenters.Thecontentofthesedreamsmaybevividandgrippingbutlackscoherence.Thenewresultsareconsistentwiththetheorythatmemoriesareconsolidatedduringsleep.Fromthepatternofactivitythatwasrecorded,"itseemsthatmemoriesalreadyinthesystemarebeingreadoutandfiledintermsoftheiremotionalsalience,withisanextremelyinterestingidea,"saidDr.J.AllanHobsonofHarvardMedicalSchool.ThenewmeasurementsweremadebyapplyingthetechniqueknownasPETscanningtosleepingsubjects.Thebiologistsfocusedonthetwoformsofsleep,knownasslow-wavesleepandREMsleep.REMsleep,sonamedbecauseoftherapideyeballmovementsthatoccurthen,takespalceaboutfourtimesduringthenightandisthephasefromwhichthemostvividdreamsarerecalled.问题：Thenewresultsofthestudy()          (满分:)
    A. showthatinsleepthefrontallobesofthebrainareactive
    B. recordthepatternofdreamactivity
    C. provethatmemoriesareconsolidatedduringsleep
    D. provethatdreamsarebasedonandreflectdailyfacts
    正确答案:————
15.[单选题]In1989,MelissastartedKidsF.A.C.E.asanafter-schoolclubatherelementaryschool.Thesix-membergroupmeteachMondaytowritelettersandplancleanupactivities."Weneverthoughtitwasanythingmorethanagroupofkidscomingtogethersotheycouldtalkabouttheenvironment,"saysTrishPoe,hermother.ButthenaletterfromMilissatothe"Today"showgotherclubontelevisionin1990.Whenotherkidsheardabouttheclub,theywroteaskinghowtheycouldgetinvoled.SoMelissa,withthehelpofhermother,whotodaymanagestheKidsF.A.C.E.officeasexecutivedirector,developedamembershipbookthatinstructedkidsonenvironmentalprojectsandhowtostartacluboftheirown."IfeltlikeIhadtowritethemallbackatoncebecauseIdidn'tlikewhatthepresidentdidtome.BecauseIdidn'tlikebeingignored...Ididn'twantthekidstohavethesamefeeling,"saysMelissa.Requestsforinformationcamefromalloverthenation.Atfirst,Melissa'sparentspaidthepostageandsupplybillsfortheclub,butsoonexpensesbecametoohigh.Sotheclubfoundasponsor,War-MartInc.,whichbeganunderwritingthebimonthlynewsletter,KidsF.A.C.E.illustrated,whichcurrentlyprovidesenvironmentalupdates,suggestions,andideastomorethan2millionpeopleworldwide.问题：Morepeoplewantedtojointheclubafter()          (满分:)
    A. anewspaperinterviewwasmade
    B. enoughlettersweredistributed
    C. theyheardabouttheclubfromatelevisionshow
    D. Melissabecameanexecutivedirector
    正确答案:————
16.[单选题]TheinventorofspectaclesprobablylivedinthetownofParis,Italy,around1286,andwasalmostcertainlyacraftsmanworkinginglass.Butnobodyknowshisname.WeonlyknowthismuchabouthimbecauseFriarGiordanepreachedasermononeWednesdaymorninginFebruary1306atachurchinFlorence."It＇snotyet20yearssincetherewasfoundtheartofmakingeye-glasseswhichmakeforgoodvision,"saidtheFriar."Oneofthebestartsandmostnecessarythattheworldhas.Soshortatimeisitsincetherewasinventedanewartthatneverexisted.Ihaveseenthemanwhofirstinventedandcreatedit,andIhavetalkedtohim."WeknowwhatFriarGiordanesaidbecauseadmirerscopiedhissermonsdownashegavethem.Theinventorofspectaclesapparentlykeptthemethodofmakingthemtohimself.Perhapshethoughtthiswasthebestwayofgettingmoneyfromhisinvention.Buttheideasoongotaround.Asearlyas1300,craftsmeninVenice,thecentreofEurope＇sglassindustry,weremakingthenew"disksfortheeyes".Spectaclesatfirstwereonlyshapedforfar-sightedpeople.Concavelenses,forshort-sightedpeople,werenotdevelopeduntilthelate15thcentury.Spectaclesallowedpeopletogoonreadingandstudyinglongafterbadeyesightwouldnormallyhaveforcedthemtogiveup.Theywerelikeanewpairofeyes.Theinventorofsuchavaluablethingshouldbehonored,everyonethought.Butforcenturiesnoonehadanyideawhotheinventorreallywas.Soallkindsofcandidateswereputforward:Dutch,English,German,Italiansfromrivalcities.AfakememorialwaserectedlastcenturyinachurchinFlorencetohonoramanasthetrueinventorofspectacles-butheneverevenexisted.问题：Thefinalparagraphdiscusses()          (满分:)
    A. thefunctionofspectacles
    B. thefakememorial
    C. theinventionofspectacles
    D. theidentityoftheinventor
    正确答案:————
17.[单选题]Whiledeathmight(beckon)atanytime,itsdarkshadowcamedirectlyintotheirhomesometimeafterduskeveryThursday.          (满分:)
    A. makeanunnoticeddeparture
    B. makeasignalingorsummoninggesture
    C. makeasuddendash
    D. makeafatalstroke
    正确答案:————
18.[单选题]Twobasicmodelsofparentalinfluenceemergefromallthiscompetitionandvariety,however.One,looselybasedonFreudianideas,haspresentedanimageofthevulnerablechild:childrenaresensitivebeings,easilydamagednotonlybytraumaticeventsandemotionalstress,butalsobyoverdosesofaffection.The2ndmodelisthatofthebehaviorists,whoseintellectualancestors,theempiricistphilosophers,describedthechild'smindasatabularasa,orblankslate.Thebehavioristmodelofchild-rearingisbasedontheviewthatthechildismalleable,andparentsarethereforecastintheroleofPygmalionswhocanshapetheirchildrenhowevertheywish."Givemeadozenhealthyinfants,well-formed,andmyownspecifiedworldtobringthemupin,"wroteJ.B.Watson,thefatherofmodernbehaviorism,"andI'llguaranteetotakeanyoneatrandomandtrainhimtobeanytypeofspecialistImight-doctor,lawyer,artist,merchant,chief,andyes,evenbeggarmanandthief!"Theimageofthevulnerablechildcallsforgentleparentswhoaresensitivetotheirchild'sinner-mostthoughtsandfeelingsinordertoprotecthimfromtrauma.Theimageofthemalleablechildrequiresstemparentswhocoollyfollowthedictatesoftheirownexplicittrainingprocedures:onlytheearlyeradicationofbadhabitsineating,sleeping,crying,canfendoffpermanentmaladjustments.问题：AccordingtotheFreudianmodelofparentalinfluence,achildis()          (满分:)
    A. tough
    B. easilyhurt
    C. well-behaved
    D. healthy
    正确答案:————
19.[单选题]In1989,MelissastartedKidsF.A.C.E.asanafter-schoolclubatherelementaryschool.Thesix-membergroupmeteachMondaytowritelettersandplancleanupactivities."Weneverthoughtitwasanythingmorethanagroupofkidscomingtogethersotheycouldtalkabouttheenvironment,"saysTrishPoe,hermother.ButthenaletterfromMilissatothe"Today"showgotherclubontelevisionin1990.Whenotherkidsheardabouttheclub,theywroteaskinghowtheycouldgetinvoled.SoMelissa,withthehelpofhermother,whotodaymanagestheKidsF.A.C.E.officeasexecutivedirector,developedamembershipbookthatinstructedkidsonenvironmentalprojectsandhowtostartacluboftheirown."IfeltlikeIhadtowritethemallbackatoncebecauseIdidn'tlikewhatthepresidentdidtome.BecauseIdidn'tlikebeingignored...Ididn'twantthekidstohavethesamefeeling,"saysMelissa.Requestsforinformationcamefromalloverthenation.Atfirst,Melissa'sparentspaidthepostageandsupplybillsfortheclub,butsoonexpensesbecametoohigh.Sotheclubfoundasponsor,War-MartInc.,whichbeganunderwritingthebimonthlynewsletter,KidsF.A.C.E.illustrated,whichcurrentlyprovidesenvironmentalupdates,suggestions,andideastomorethan2millionpeopleworldwide.问题：WhenMelissawasstartingtheclub,shewas()          (满分:)
    A. aschoolteacherworkingforthekids
    B. asocialworkertakingcareofchildrenafterschool
    C. theparentofakidatschool
    D. akidattendinganelementaryschool
    正确答案:————
20.[单选题]NoonethoughtofanythingevenalittlebitlikethezipperuntilWhitecombL.Judsoncamealong.Therewerebuttonsandbutton-holes,hooksandeyes,lacesandbuckles.Theyalltookanirritatinglylongtimetodoup,especiallywhenmenworehigh-lacedbootsandfashionableladiessqueezedthemselvesintolongcorsets.WhitecombL.Judson＇sslide-fastenerwasanout-of-the-blueinvention,andnooneknowswhatgavehimtheidea.Nooneevenknowsmuchabouthim,exceptthathewasamechanicalengineerlivinginChicagoandthathepatentedotherinventions,todowithastreetrailwaysystemandmotor-cars.Judsoninventedthefirstzipper(called,atthetime,aClaspLockerorUnlocker)in1891.Thisingeniouslittledevicelookssosimple,andtheprinciplebehinditissimple:onerowofhooksandeyesslottingneatlyintoanotherrowbymeansofatab.Yetittook22years,manyimprovementsandanotherinventortomakethezipperreallypractical.问题：Agoodtitlefortheabovepassageis()          (满分:)
    A. JudsontheInventor
    B. HowtheZipperWorks
    C. ThePrincipleoftheZipper
    D. TheInventionoftheZipper
    正确答案:————
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