A.求目標(biāo)函數(shù)最大值的線性規(guī)劃中,對(duì)偶價(jià)格等于影子價(jià)格B.當(dāng)對(duì)偶價(jià)格為正,將改進(jìn)目標(biāo)函數(shù)值C.求目標(biāo)函數(shù)最小值的線性規(guī)劃中,影子價(jià)格為對(duì)偶價(jià)格的相反數(shù)D.當(dāng)影子價(jià)格為負(fù),將“惡化”目標(biāo)函數(shù)值
A.原問(wèn)題有m個(gè)約束條件,對(duì)偶問(wèn)題有m個(gè)變量;原問(wèn)題有n個(gè)變量,對(duì)偶問(wèn)題有n個(gè)約束條件B.原問(wèn)題的價(jià)值系數(shù)對(duì)應(yīng)對(duì)偶問(wèn)題的右端項(xiàng);原問(wèn)題的右端項(xiàng)對(duì)應(yīng)對(duì)偶問(wèn)題的價(jià)值系數(shù)C.原問(wèn)題的約束條件系數(shù)矩陣為對(duì)偶問(wèn)題系數(shù)矩陣D.原問(wèn)題的約束條件系數(shù)矩陣轉(zhuǎn)置后為對(duì)偶問(wèn)題系數(shù)矩陣
A.有無(wú)界解B.有無(wú)窮多最優(yōu)解C.有退化解