A.AaBbCC B.AABbCc C.aaBbCc D.AaBbCc
A.1/2 B.3/4 C.1/3交 D.2/3
A.產(chǎn)仔數(shù)目多 B.肉質(zhì)好 C.飼料轉(zhuǎn)化率高 D.產(chǎn)品獨(dú)特