23.下列何者為造成雛雞心臟或肺臟白色結節病變之主要病原?
(A)Clostridium perfringens
(B)Riemerella anatipestifer
(C)Avibacterium paragallinarum
(D)Salmonella Pullorum
答案:登入後查看
統計: A(34), B(248), C(598), D(1825), E(0) #1588604
統計: A(34), B(248), C(598), D(1825), E(0) #1588604