55.常引起犬慢性嘔吐、下痢、胃炎甚至胃潰瘍的病原為下列何者?
(A)Helicobacter felis
(B)Helicobacter pylori
(C)Salmonella Typhimurium
(D)Salmonella enterica
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統計: A(451), B(641), C(77), D(217), E(0) #3133422
統計: A(451), B(641), C(77), D(217), E(0) #3133422