2024年12月大学英语四级考试真题及答案(第3套)

年12月大学英语四级考试真题及答案（第3套）敬告考生：所有题目必须在答题卡上规定位置作答，在试题册上或答题卡上非规定位置的作答一律无效。2.请在规定时间内在答题卡指定位置依次完成作文、听力、阅读、翻译各部分考试，作答作文期间不得翻阅该试题册。听力录音播放完毕后，请立即停止作答，监考员将立即收回答题卡1，得到监考员指令后方可继续作答。作文题内容印在试题册背面，作文题及其他主观题必须用黑色签字笔在答题卡指定区域内作答。4.选择题均为单选题，错选、不选或多选将不得分，作答时必须使用HB-2B铅笔在答题卡上相应位置填涂，修改时须用橡皮擦净。PartⅠWriting(30minutes)（请于正式开考后半小时内完成该部分，之后将进行听力考试)Directions:Supposetheuniversitynewspaperisinvitingsubmissionsfromthestudentsforitscomingeditiononhowtoenrichstudents'knowledgeoftraditionalChineseculture.Youarenowtowriteanessayforsubmission.Youwillhave30minutestowritetheessay.Youshouldwriteatleast120wordsbutnomorethan180words.请用黑色签字笔在答题卡1指定区域内作答作文题，在试题册上的作答无效！注：每次四级考试只出两套听力，请参照2024年12月第1套卷和第2套卷的听力。PartIIListeningComprehension(25minutes)SectionADirections:Inthissection,youwillhearthreenewsreports.Attheendofeachnewsreport,youwillheartwoorthreequestions.Boththenewsreportandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions1and2arebasedonthenewsreportyouhavejustheard.1.A)Theywillseea27%higherpricetobuynaturalgasB)Theywillhaveinsufficientheatingoiltokeepwarm.C)Theywillhaveacostlybilltopaytoheattheirhomes.D)Theywillexperiencethecoldestwinterinfourdecades.2.A)ProvidedadditionalfundingtoLowIncomeHomeEnergyAssistanceProgram.B)AssuredU.S.citizensofanincreaseinenergysuppliesbytheendofthisyear.C)Predicteda10%jumpinheatingbillsformostU.S.householdsthiswinter.D)Decidedonthisyear'senergyassistancepackageof$8billionintotal.Questions3and4arebasedonthenewsreportyouhavejustheard.3.A)Theycarelessabouttheirdietnowthanbefore.B)Theymaylackadequateknowledgeofhealthyfood.C)Theymayholdtoooptimisticaviewabouttheirdiet.D)Theypayinsufficientattentiontotheirchoiceoffood.4.A)Thosewhofinished24-hourfoodquestionnaires.B)Thosewhofullyunderstoodtheratingscale.C)Thosewhocaredaboutfoodquality.D)Thosewhoratedtheirdietaspoor.Questions5to7arebasedonthenewsreportyouhavejustheard.5.A)Theyexperiencedaheartbreakingmoment.B)Theygatheredtogethertorescueanelephant.C)Theyheardanoisefromthebottomofawell.D)Theyfoundanelephantwanderingaroundawell.6.A)Toborrowtheircrane.B)Toaskthemforhelp.C)Toreportthestrangenoise.D)Togetfoodfortheelephant.7.A)Theelephantwasabletoreturntothejungle.B)Thearmyofficerswereexaminedforinjuries.C)Thearmyofficerswererewardedfortheirrescueefforts.D)Theelephantwasgivenmedicaltreatmentformanydays.SectionBDirections:Inthissection,youwillheartwolongconversations.Attheendofeachconversation,youwillhearfourquestions.Boththeconversationandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions8to11arebasedontheconversationyouhavejustheard.8.A)Hefoundithadcausedhimmuchinconvenience.B)Itledhimtospendmoremoneythannecessary.C)Itwasmuchlesssecurethanpayingwithcash.D)Hewantedtobelessdependentonhisphone.9.A)Livingbeyondhermeans.B)Lackofbudgetingstrategies.C)Fashionaddiction.D)Impulsepurchasing.10.A)Eathealthierfoodwithlessmoney.B)Orderfoodlikeburgersandchips.C)Avoidgettingaddictedtojunkfood.D)Payeitherincashorwithhisphone.11.A)Makingashoppinglist.B)Stickingtohisbudget.C)Withdrawingcashonlyonceamonth.D)Thinkingtwicebeforebuyingsomething.Questions12to15arebasedontheconversationyouhavejustheard.12.A)Hedoesnotenjoyanyballgames.B)Hehastoprepareforthefuture.C)Hehasbreathingproblems.D)Heisnotuptoanythingchallenging.13.A)Soccer.B)Badminton.C)Volleyball.D)Basketball.14.A)Thepossibilitiesofjoiningtheschoolsportsteam.B)Theopportunitiesofwinningsomechampionships.C)Thechancesofgettinganathleticscholarshiplateron.D)Theoddsofbecomingaprofessionalsportsmansomeday.15.A)Itdiffersentirelyfromindoorvolleyball.B)Itappealstobothschoolgirlsandschoolboys.C)Itislesspopularthanindoorsportsinthecountry.D)Itiscompletelydifferentfromotheroutdoorgames.SectionCDirections:Inthissection,youwillhearthreepassages.Attheendofeachpassage,youwillhearthreeorfourquestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions16to18arebasedonthepassageyouhavejustheard.16.A)Itusuallyrequiresyearsofpreparations.B)Itdoesalotofharmtotheenvironment.C)Itoftenburnsoverthreehundredtonnesofrefinedfuel.D)Itprovestobethemostcomplicatedstageofspacemissions.17.A)Theyareburntupinouterspace.B)TheyareguidedbacktoEarth.C)Theyarereusedupto100timesD)Theyaretreatedasexpendable.18.A)NewtechnologiesforbringingbackspacevehiclesforrecyclingB)Thetechnologyformeetingtheneedsofcommercialspacetravel.C)ManyofthetechnologiestolimittheimpactofspacetravelonEarth.D)Thetechnologyforeffectivelyprotectingozonefrombeingdestroyed.Questions19to21arebasedonthepassageyouhavejustheard.19.A)Itcanhelpunskilledreadersfeelmoresecure.C)Itcanencouragereluctantreaderstoreadaloud.D)Itcanstrengthenchildren'sconfidenceinothers.D)Itcanboostchildren'sinterestincommunication.20.A)Bymotivatingchildrentofindoutabouttheirfavouritepets.B)Bytakingchildrentothelibrarytoborrowbooksonanimals.C)Byallowingchildrentosurftheinternetaboutpetsbythemselves.D)Byshowingchildrenhowtoacquireknowledgeabouthealthypets.21.A)BylearningthatraisingpetscandomuchgoodB)Bywatchinghowhealthypetsarebroughtup.C)Byhearingabouttheirpeers'passionforpets.D)Byvisitingfriendswhohavehouseholdpets.Questions22to25arebasedonthepassageyouhavejustheard.22.A)Sendwould-bestudentsapacketofinformation.B)Updateregularlyallinformationontheirwebsites.C)Informprospectivestudentsoftheiryearlyenrollment.D)Answerquestionsraisedbyapplicantsandtheirparents.23.A)Overseeprivateinstitutionsdirectly.B)Followotherstates'example.C)Superviseallschoolsconsistently.D)Regulatepublicinstitutionsbylaw.24.A)Theyareresourceful.B)Theyarecompetitive.C)Theyprovidethebestopportunitytorealizeone'sdream.D)TheyappealmosttostudentsfromotherstatesintheU.S.25.A)Somestudentswastemuchtimesurfingthenet.B)Studentsmayneedtovisittoomanywebsites.C)Studentshavetosearchfortheinformation.D)Somestudentsmaylackadequateaccess.PartⅢReadingComprehension(40minutes)SectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.Superrealisticmasksaremadefromflexiblematerialssuchassiliconeandaredesignedtoimitaterealhumanfaces-downtoeverylastdetail.InastudybytheUniversitiesofYorkandKyoto,researchersaskedparticipantstolookatpairsofphotographsanddecidewhichshoweda26faceandwhichshowedapersonwearingamask.Surprisingly,participantsmadethewrongcallinone-in-fivecases.The20%errorrate27inthestudylikelyunderestimatestheextenttowhichpeoplewouldstruggletotellan28facefromtherealthingoutsideofthelab.TheresearcherscollecteddatafromparticipantsfromboththeUKandJapanto29anydifferencesaccordingtorace.Whentrialparticipantswereaskedtochoosebetweenphotographsoffacesofadifferentracefromtheirs,responsetimeswereslowerandselectionswere5%less30.Therearenowdozensofcriminalcasesinwhichoffendershave31themselvesoffaspeopleofadifferentage,raceorgender,sendingpoliceinvestigationsdownthewrongpath.Inonerecentcase,aninternationalgangusedan32realisticmasktoposeasaFrenchminister,33businessexecutivesoutofmillionsofpounds.Dr.JetSanders,whoworkedonthestudywhileaPhDstudentattheUniversityofYork,said:"Failuretodetectsyntheticfacesmayhaveimportantimplicationsforsecurityandcrimepreventionassuperrealisticmasksmay4thekeycharacteristicsofaperson'sappearancetobe35identified."A)accurateB)allowC)artificialD)cheatingE)desertedF)establishG)extremelyH)immediatelyI)incorrectlyJ)normalK)observedL)passedM)remindingN)reparableO)resolveSectionBDirections:Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswerSheet2.StopthinkingandstartdoingA)Mostpeoplehaveadreaminlife,avisionofwhoorwhatthey'dliketobeinthefuture.Ataminimum,everyonehasinterestsandvaluesthatdeterminewhattheywantoutoftheirlives.Evenso,tryingtosetachievablegoalsthatyou'llworkforoverthecourseofmanyyearscanbeextremelychallenging.Itcanbehardtoknowwheretoevenbegin,andthethingsyouhopetoachievemayseemimpossible.But,ifyou'rewellpreparedyoumaybeabletosetgoalsforyourlifethatarejustasfulfillingtoworktowardastoachieve.B)Weallhavegoalsthatwewanttoachieveinourlives.Thesegoalsmayincludelearninganewlanguage,eatinghealthierandlosingweight,becomingabetterparent,savingmoremoney,andsoon.Itcanbeeasytoassumethatthegapbetweenwhereyouarenowandwhereyouwanttobeinthefutureiscausedbyalackofknowledge.Thisiswhywebuycoursesonhowtostartabusinessorhowtoloseweightfastorhowtolearnanewlanguageinthreemonths.Weassumethatifweknewaboutabetterstrategy,thenwewouldgetbetterresults.Webelievethatanewresultrequiresnewknowledge.C)WhatI'mstartingtorealize,however,isthatnewknowledgedoesnotnecessarilydrivenewresults.Infact,learningsomethingnewcanactuallybeawasteoftimeifyourgoalistomakeprogressandnotsimplygainadditionalknowledge.D)Itallcomesdowntothedifferencebetweenlearningandpracticing.ThomasSterner,inhisbookThePracticingMind,explainsthekeydifferencebetweenpracticingandlearning.Hesays:“Whenwepracticesomething,weareinvolvedinthedeliberaterepetitionofaprocesswiththeintentionofreachingaspecificgoal."Herethewords"deliberate"and"intention"arekey,becausetheydefinethedifferencebetweenactivelypracticingsomethingandpassivelylearningit.E)Learningsomethingnewandpracticingsomethingnewmayseemverysimilar,butthesetwomethodscanhaveprofoundlydifferentresults.Herearesomeadditionalwaystothinkaboutthedifference.Let'ssayyourgoalistogetstrongerandmorefit.Youcanresearchthebestinstructionsonweightliftingtechnique,buttheonlywaytobuildstrengthistopracticeliftingweights.Let'ssayyourgoalistogrowyourstartup.Youcanlearnaboutthebestwaytomakeasalespitch,buttheonlywaytoactuallylandcustomersistopracticemakingsalescalls.Let'ssayyourgoalistowriteabook.Youcantalktoabest-sellingauthoraboutwriting,buttheonlywaytobecomeabetterwriteristopracticepublishingconsistently.F)Passivelearningcreatesknowledge.Activepracticecreatesskill.Let'sconsideracouplemorereasonstoprioritizeactivepracticeoverpassivelearning.First,passivelearningcanbeastickthatsupportsinaction.Inmanycases,learingisactuallyawaytoavoidtakingactiononthegoalsandintereststhatwesayareimportanttous.Forexample,let'ssayyouwanttolearnaforeignlanguage.Readingabookonhowtolearnaforeignlanguagequicklyallowsyoutofeellikeyouaremakingprogress("Hey,I'mfiguringoutthebestwaytodothis!").Ofcourse,you'renotactuallypracticingtheactionthatwoulddeliveryourdesiredoutcome(speakingtheforeignlanguage).G)Insituationslikethisone,weoftenclaimthatwearepreparingorresearchingthebestmethod,buttheserationalizationsallowustofeellikewearemovingforwardwhenwearemerelyspinningourwheels.Wemakethemistakeofbeinginmotionratherthantakingaction.Learningisvaluableuntilitbecomesaformofprocrastination（拖延).H)Anotherpointtoconsideristhatpracticeislearning,butlearningisnotpractice.Passivelearningisnotaformofpracticebecausealthoughyougainnewknowledge,youarenotdiscoveringhowtoapplythatknowledge.Activepractice,meanwhile,isoneofthegreatestformsoflearningbecausethemistakesyoumakewhilepracticingrevealimportantinsights.I)Evenmoreimportantly,practiceistheonlywaytomakeameaningfulcontributionwithyourknowledge.Youcanwatchanonlinecourseabouthowtobuildabusinessorreadanarticleaboutaterribledisasterinadevelopingnation,butthatknowledgeisunproductiveunlessyouactuallylaunchyourbusinessordonatetothoseinneed.Learningbyitselfcanbevaluableforyou,butifyouwanttobevaluabletoothers,thenyouhavetoexpressyourknowledgeinsomeway.J)Thelastimportantpointtoconsideristhatpracticefocusesyourenergyontheprocess.ThomasSterneroncesaid,"Progressisanaturalresultofstayingfocusedontheprocessofdoinganything."Thestateofyourliferightnowisaresultofthehabitsandbeliefsthatyouhavebeenpracticingeachday.Whenyourealizethisandbegintodirectyourfocustowardpracticingbetterhabitsday-inandday-out,continualprogresswillbethelogicaloutcome.Itisnotthethingswelearnnorthedreamswevisualizethatdetermineourresults,butratherthehabitsthatwepracticeeachday.Fallinlovewithboredomandfocusyourenergyontheprocess,nottheproduct.K)Whatdoesthisallmean?Ispassivelearninguseless?Ofcoursenot.Inmanycases,learningforthesakeoflearningcanbeabeautifulthing.Nottomentionthatsoakingupnewinformationcanhelpyoumakemoreinformeddecisionswhenyoudodecidetotakeaction.Thatsaid,themainpointofthisarticleisthatlearningbyitselfdoesnotleadtoprogress.Weoftenhidebehindinformationanduselearningasanexcusetodelaythemoredifficultandmoreimportantchoiceofactuallydoingsomething.Spendlesstimepassivelylearningandmoretimeactivelypracticing.Stopthinkingandstartdoing.36.Acquisitionofnewknowledgemaynotguaranteetheprogressthatyouaimtomake.37.Yourcurrentsituationinlifeisbuiltonthebeliefsandhabitsyouhavebeenpracticingdaily.38.Knowingthebestwaytolearnaforeignlanguagewillnotenableyoutospeakitwithoutactualpractice.39.Peoplemayfinditdemandingtocreateagoalwhichwilltakealongtimetoachieve.40.Learningandpracticingseemtobeverymuchalike,butthetwoprocessescanleadtoquitedifferentoutcomes.41.Absorbingnewinformationishelpfulinmakingbetterdecisionspriortoaction.42.Sometimeswemayfeellikewearemakingprogressbydoingsomeresearchormakingpreparations,butactuallywearestayingatthestartingpoint.43.Weareinclinedtothinkthatalackofknowledgepreventsusfromadvancingtoabetterfuture.44.Learningcanbenefityoubyitself,butonlypracticecanturnwhatyoulearnintomeaningfulcontributions.45.Practiceinvolvesrepeatingaprocessintentionallytoattainaparticularobjective.SectionCDirections:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.PassageOneQuestions46to50arebasedonthefollowingpassage.Researchinhuman-vehicleinteractionhasshownevensystemsdesignedtoautomatedrivingarefarfrombeingerror-proof.Recentevidencepointstodrivers'limitedunderstandingofwhatthesesystemscanandcannotdoasacontributingfactortosystemmisuse.Arecentstudytacklestheissueofover-trustingdriversandtheresultingsystemmisusefromalegalviewpoint.Itlooksatwhatthemanufacturersofself-drivingcarsshouldlegallydotoensurethatdriversunderstandhowtousethevehiclesappropriately.Onesolutionsuggestedinthestudyinvolvesrequiringbuyerstosignend-userlicenseagreements(EULAs),similartothetermsandconditionsthatrequireagreementwhenusingnewsoftwareproducts.Butthisisfarfromideal.Theagreementmaynotprovideenoughinformationtothedriver,leadingtoconfusionaboutthenatureoftherequestsforagreementandtheirimplications.Further,mostendusersdon'treadEULAs.A2017studyshows91percentofpeopleagreetothemwithoutreading.Amongyoungpeople,97percentagreewithoutreviewingtheterms.Theissueisthat,unlikeusingasmartphoneapp,operatingacarhasserioussafetyrisks,whetherthedriverishumanorsoftware.Andhumandriversneedtoconsenttotakeresponsibilityfortheoutcomesofthesoftwareandhardware."Warningfatigue"anddistracteddrivingarealsocausesforconcern.Forexample,adriver,annoyedafterreceivingcontinuouswarnings,coulddecidetojustignorethemessage.Or,ifthemessageispresentedwhilethevehicleisinmotion,itcouldrepresentadistraction.Giventheselimitationsandconcerns,evenifthismodeofobtainingconsentistomoveforward,itlikelywon'tfullyprotectautomakersfromtheirlegalliabilityshouldthesystemmalfunction(发生故障)oranaccidentoccur.Drivertrainingforself-drivingvehiclescanhelpensurethatdriversfullyunderstandsystemcapabilitiesandlimitations.Thisneedstooccurbeyondthevehiclepurchase.Recentevidenceshowsevenrelyingontheinformationprovidedbythesellerisnotgoingtoanswermanyquestions.Allofthisconsidered,theroadforwardforself-drivingcarsisnotgoingtobeasmoothrideafterall.46.Whatdowelearnfromresearchinhuman-vehicleinteraction?A)Automaticdrivingsystemsarebynomeansimmunetoerrors.B)Driverlessvehiclesarelikelytobemisusedbysomepeople.C)Self-drivingcarmanufacturersarenotawareofthelegalmattersinvolved.D)Thereisalongwaytogobeforehumanscaninteractwithdriverlessvehicles.47.Whatistheproblemwithrequiringbuyerstosignend-userlicenseagreements?A)Endusers,youngandoldalike,findthetermscomplextointerpret.B)Mostenduserssignthemwithoutbotheringtoreadtheterms.C)Manypeopleareoftenconfusedbythewordingoftheterms.D)Mostendusersdonotunderstandthetermsafterreadingthemthrough48.Whatwoulddriversdowhentheysufferfrom"warningfatigue"?A)Wastenotimekeepingthecarmoving.B)Restawhiletoavoidfatiguedriving.C)Takenoactiondespiterepeatedwarnings.D)Takenoteofthemessagethoughfatigued.49.Whatdoestheauthorthinkofcontinuingtoaskbuyerstosignend-userlicenseagreements?A)Itwillprobablynotguaranteethesafetyofdriversincaseofaccidents.B)Itlikelywon'tensurethattheautomaticdrivingsystemfunctionsproperly.C)Itlikelywon'tfullyprotectautomakersagainstaccusationsofdeliberatecheating.D)Itwillprobablynotprovidemanufacturersadequateprotectionfromlegalresponsibilities.50.Whatshouldbedonetohelpdriversfullyunderstandsystemcapabilitiesandlimitations?A)Trainingthemtobeexpertsinvehicleautomation.B)Familiarizingthemwiththesystemsthroughtraining.C)Broadeningtheirknowledgeofaccident-preventionmechanisms.D)Facilitatingtheiraccesstotheinformationprovidedbytheseller.PassageTwoQuestions51to55arebasedonthefollowingpassage.Doyoueverblendupaproteindrinkforbreakfast,orgrabaproteinbarfollowinganafternoonworkout?Ifso,youarelikelyamongthemillionsofpeopleinsearchofmoreprotein-richdiets.Protein-enrichedproductsarefoundeverywhere.Butcontrarytoallthepublicitythateveryoneneedsmoreprotein,mostAmericansgettwiceasmuchastheyneed.Manyofuslivinginthemostdevelopedcountriesarebuyingintoamythofproteindeficiencycreatedbyfoodcompaniesandself-identifiedhealthexperts.GlobalretailsalesofproteinsupplementproductsreachedanastonishingUS$18.9billionin2020.Butarewereallyinneedofmoreprotein?PhysiciansintheU.S.haveneveractuallyexaminedapatientwithproteindeficiencybecausesimplybyeatinganadequatenumberofdailycalorieswearealsomostlikelygettingenoughprotein.Infact,AmericanscurrentlyconsumealmosttwicetheNationalAcademyofMedicine'srecommendeddailyintakeofproteinalthoughthemostdesirableproteinintakemayvarydependingonageandactivitylevel.Forexample,ifyou'readedicatedathleteyoumightneedtoconsumehigherquantitiesofprotein.Generally,though,a140-poundpersonshouldnotexceed120gramsofproteinperday,particularlybecauseahighproteindietcanstrainkidneyandliverfunctionandincreaserisksofdevelopingheartdiseaseandcancer.Whilefatsandsugarhavetakenthebeatinginturnssinceoveracenturyago,proteinhasmanagedtoremainourred-hotfavorite.Inthe1970sthroughthe1990s,proteinproductsremainedvisiblebutmovedbacksomewhatwiththedietaryspotlightfirmlyfixedonlow-calorie,low-fat,sugar-freesnackfoodsandbeveragesfollowingthepublicationofstudieslinkingsugarandsaturated(饱和的）fatconsumptiontoheartdisease.Laterresearchin2003,however,suggestedhigh-proteindietscouldaidinweightloss,andproteinquicklyregaineditsformernutrient-superstarstatus.Nowmostpeoplelivinginhigh-incomenationsareconsumingenoughprotein.Whenwereplacemealswithaproteinbarordrink,wealsoriskmissingoutontherichsourcesofantioxidants(抗氧化剂),vitaminsandmanyotherbenefitsofrealfood.51.WhatdowelearnaboutpublicityoverproteininAmerica?A)Ithashelpedtocreatethemythofproteindeficiency.B)IthashelpedAmericansinsearchofprotein-richdiets.C)Ithasraisedalotofhealthconcernsamongthepublic.D)Ithasbeenfundedbyfoodcompaniesandhealthexperts.52.WhyhavephysiciansintheU.S.neveractuallyexaminedapatientwithproteindeficiency?A)Americanscanpurchasemanykindsofprotein-richfoodseverywhere.B)Americanscanabsorbthenumberofcaloriesrecommendedbyfoodexperts.C)Americanscangetsufficientproteinjustbycatingadequatefoodsdaily.D)Americanscanrelyonfoodsupplementstopreventpro