59 鮭類迴旋病(wirling disease)的病原為何?
(A)Aeromonas salmonicida
(B)Myxobolus cerebralis
(C)Yersinia ruckeri
(D)Vibrio anguillarum
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統計: A(66), B(139), C(15), D(19), E(0) #1179365
統計: A(66), B(139), C(15), D(19), E(0) #1179365