25.家禽壞死性腸炎(necrotic enteritis)的病原為何?
(A)Clostridium perfringens type A
(B)Clostridium perfringens type B
(C)Clostridium perfringens type D
(D)Clostridium perfringens type E
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統計: A(1974), B(161), C(559), D(219), E(0) #2181399
統計: A(1974), B(161), C(559), D(219), E(0) #2181399