阴道自净作用
有关慢性缺氧产生的结果,下列哪项正确() ["A.心输出量减少","B.静脉回流减少","C.严重贫血","D.血容量增加","E.血粘度降低"]
下列哪项症状或体征有助于鉴别左心衰竭和支气管哮喘() ["A.进行性呼吸困难","B.端坐呼吸","C.末梢性水肿","D.交替脉和奔马律","E.泡沫痰"]
哮喘病人围术期并发症可比呼吸系统正常的病人高() ["A.0倍","B.1倍","C.2倍","D.3倍","E.4倍"]
前庭大腺位于()。 ["A.小阴唇后部","B.尿道后壁","C.大阴唇后部","D.阴道内侧壁","E.阴道前庭内"]
外生殖器