A.產(chǎn)仔數(shù)目多 B.肉質(zhì)好 C.飼料轉(zhuǎn)化率高 D.獨(dú)特的適應(yīng)性
A.顯性性狀 B.隱形性狀 C.數(shù)量性狀 D.限性性狀
A.99% B.10% C.90% D.81%