10.下列何種病原菌最常造成乾乳牛或分娩前女牛的乳房感染,且其感染多為次臨床型乳房炎(subclinical
mastitis)?
(A)金黃色葡萄球菌(Staphylococcus aureus)
(B)大腸桿菌(Escherichia coli)
(C)凝固酶陰性葡萄球菌(coagulase negative Staphylococci )
(D)異乳鏈球菌(Streptococcus dysagalactiae)
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統計: A(426), B(450), C(1133), D(441), E(0) #2183704
統計: A(426), B(450), C(1133), D(441), E(0) #2183704