A.折舊 B.利潤 C.消費(fèi) D.工資
A.MR=SMC B.MR=LMC C.AR=LAC D.MR=AC
A.完全競(jìng)爭(zhēng) B.外部影響 C.對(duì)稱信息 D.市場(chǎng)機(jī)制