A.只要第二批貨物的質(zhì)量問(wèn)題構(gòu)成根本違約,買方即可宣告合同對(duì)該批貨物無(wú)效
B.只要第二批貨物的質(zhì)量問(wèn)題構(gòu)成根本違約,買方即可宣告合同對(duì)已交付或今后交付的各批貨物無(wú)效
C.如第二批貨物的質(zhì)量問(wèn)題構(gòu)成一般違約,買方可宣告合同對(duì)該批貨物無(wú)效
D.如第二批貨物的質(zhì)量問(wèn)題構(gòu)成根本違約,買方僅可宣告合同對(duì)該批貨物和今后交付的貨物無(wú)效