31.下列何種病況與山羊的病毒性關節炎腦炎(CAE)有關?
(A)2-6個月齡小羊encephalomyelitis及母羊mastitis
(B)6個月齡以上山羊encephalitis及laminitis
(C)6個月齡以上山羊pneumonia及laminitis
(D)2-6個月齡小羊pneumonia及enteritis
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統計: A(1517), B(558), C(85), D(55), E(0) #1739142
統計: A(1517), B(558), C(85), D(55), E(0) #1739142