A.數(shù)量折扣B.現(xiàn)金折扣C.季節(jié)折扣D.功能折扣
A.B2GB.G2GC.G2CD.C2C
A.新產(chǎn)品研發(fā)B.市場(chǎng)開拓C.生產(chǎn)現(xiàn)場(chǎng)D.技術(shù)創(chuàng)新