A.從有效的訂購單追查至驗收單 B.從驗收單追查至采購明細賬 C.從付款憑證追查至購貨發(fā)票 D.從購貨發(fā)票追查至采購明細賬
A.240 B.120 C.100 D.80
A.36.55 B.39 C.42.5 D.45.5