專技高考-獸醫師獸醫病理學109 年第 45 題單選題下列何者可造成腸黏膜增殖及出血病變?ASalmonella CholeraesuisBLawsonia intracellularis正確答案CRhodococcus equiDClostridium perfringens type C 答案與詳解