22.下列何種病原可造成豬隻過度分泌型(hypersecretion)下痢?
(A)Brachyspira hyodysenteriae
(B)Lawsonia intracellularis
(C)Escherichia coli
(D)Clostridium perfringens Type C

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統計: A(1), B(3), C(6), D(2), E(0) #3973541

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