57.下列何種病原的感染不會出現白色結節?
(A)Flexibacter columnaris
(B)Renibacterium salmoninarum
(C)Photobacterium damsela subsp. pisicida
(D)Ichthyophonas hoferi
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統計: A(544), B(112), C(96), D(162), E(0) #856677
統計: A(544), B(112), C(96), D(162), E(0) #856677