專技高考-獸醫師獸醫普通疾病學106 年第 36 題單選題可觸及四肢的牛難產胎位(presentation)為:A橫背位(transverse dorsal presentation)B縱背位(dorse-vertical presentation)C橫腹位(transverse ventral presentation)正確答案D胸頭位(deviation of the head) 答案與詳解