69.魚類體表出現淺層性白點,應是下列何種病原所造成?
(A)Argulus sp.
(B)Myxidium sp.
(C)Amyloodinium ocellatum
(D)Aphanomyces invadans
答案:登入後查看
統計: A(142), B(538), C(1009), D(243), E(0) #2743599
統計: A(142), B(538), C(1009), D(243), E(0) #2743599