7.下列何種症狀最常見於瘤胃酸中毒(rumen acidosis)之牛隻?
(A)便秘
(B)下痢
(C)呼吸困難
(D)發熱
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統計: A(108), B(540), C(259), D(213), E(0) #853530
統計: A(108), B(540), C(259), D(213), E(0) #853530