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何为消费群体？消费群体是怎样形成的？

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简述消费者的能力差异及其对消费行为的影响

案例分析书本P73页

Directions:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.Millionsofpeopletravelbyplaneeverysingleday.Ifyou'replanningonbeingoneofthemsoon,youmightnotbelookingforwardtothe1feelingairtraveloftenleavesyouwith.Besidestheairportcrowdsandstress,travellingatahighaltitudehasrealefectsonthebody.Althoughthepressureofthecabinis2topreventaltitudesickness,youcouldstill3sleepinessoraheadache.Theloweroxygenpressurefoundinanaircraftcabinis4tothatat6,000-8,000feetofaltitude.Adropinoxygenpressurecancauseheadachesincertain5Tohelppreventheadaches,drinkplentyofwater,andavoidalcoholandcoffee.Aiplanefoodmightnotreallybeastatelessasyou6thought.Theairyoubreatheinaplanedriesoutyourmouthandnose,whichcanaffectyoursenseoftaste.Perceptionofsweetandsaltyfoodsdroppedbyalmost30percentinasimulationofairtravel.However,youcanmakeyourtastebudsactiveagainbydrinkingwater.Adrymouthmay7tastesensitivity,buttasteisrestoredbydrinkingfluids.Althoughin-flightinfections8indryenvironmentslikeairplanes,yourriskofgettingsickfromanairplaneisactuallylowbecauseoftheair9used.Unlessyou'resttingnexttosomeonewhoiscoughingorsneezing,youshouldn'tworrytoomuchaboutgettingsick.However,bacteriahavebeenshowntoliveoncabinsurfaces,sowashyourhands10.A)adjustedB)channelsC)equivalentD)experienceE)filtersF)frequentlyG)individualsH)originallyI)particularJ)primarilyK)reduceL)renovatedM)smoothN)thriveO)unpleasant

成人体重50kg,烧伤面积I度5%,Ⅱ度25%,Ⅲ度10%伤后第1个24h应补晶体与胶体液总量是___ml

A. 40×50×1.5
B. 10×50×1.5
C. 5×50×1.5
D. 35×50×1.5
E. 25×50×1.5