题目内容：
Questionsarebasedonthefollowingpassage． Oneprincipleoftaxation,calledthebenefitsprinciple,statesthatpeopleshouldpaytaxesbasedonthebenefitstheyreceivefromgovernmentservices．Thisprincipletriestomakepublicgoodssimilarto36goods．Itseemsreasonablethatapersonwhooftengoestothemoviespaysmorein37formovieticketsthanapersonwhorarelygoes．And38,apersonwhogetsgreatbenefitfromapublicgoodshouldpaymoreforitthanapersonwhogetslittlebenefit．
Thegasolinetax,forinstance,issometimes39usingthebenefitsprinciple．Insomestates,40fromthegasolinetaxareusedtobuildandmaintainroads．Becausethosewhobuygasolinearethesamepeoplewhousetheroads,thegasolinetaxmightbeviewedasa41waytopayforthisgovernmentservice．
Thebenefitsprinciplecanalsobeusedtoarguethatwealthycitizensshouldpayhighertaxesthanpoorerones,42becausethewealthybenefitmorefrompublicservices．Consider,forexample,thebenefitsofpoliceprotectionfrom43．Citizenswithmuchtoprotectgetgreaterbenefitfrompolicethanthosewithlesstoprotect．Therefore,accordingtothebenefitsprinciple,thewealthyshould44morethanthepoortothecostof45thepoliceforce．Thesameargumentcanbeusedformanyotherpublicservices,suchasfireprotection,nationaldefense,andthecourtsystem．
A．adapt
B．contribute
C．exerting
D．expenses
E．fair
F．justified
G．maintaining
H．private
I．provided
J．revenues
K．similarly
L．simply
M．theft
N．total
O．wealth
第(36)题应填__________
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答案解析：