單項選擇題

完全競爭市場均衡時,在廠商均衡產(chǎn)量上必然有()

A.MR=LMC≠SMC,其中MR=AR=P
B.MR=LMC=SMC≠LAC,其中MR=AR=P
C.MR=LMC=SMC=SAC≠LAC,其中MR=AR=P
D.MR=LMC=SMC=SAC=LAC,其中MR=AR=P

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