A.質(zhì)量競(jìng)爭(zhēng) B.調(diào)整價(jià)格從而確定產(chǎn)量 C.廣告競(jìng)爭(zhēng) D.上述方法都可以
A.1/3倍 B.2/3倍 C.1倍 D.不能確定
A.MR=2 B.MR=4 C.MR=18 D.MR=1