肝硬化时蜘蛛痣发生的主要原因是() ["侧支循环建立","肝功能不全,血小板减少","胆色素代谢障碍","对雌激素的灭活作用减弱","低蛋白血症"]
发育性髋关节脱位的病理改变主要发生在() ["髋部的肌肉、韧带","髋臼、股骨头、颈和关节囊","髋部的神经、血管","骨盆","脊柱"]
患者,女性,30岁,怀孕8个月,3天前出现左下第三磨牙冠周炎。此时局部最佳处理方法() ["龈瓣切除","拔除","冲洗上药","理疗","不处理"]
骨折三期用药中期可选用:() ["A.复原活血汤","B.桃红四物汤","C.壮筋养血汤","D.当归丸","E.接骨续筋汤"]
在伤寒病程第2周中,下列哪一种培养阳性率最高() ["血培养","骨髓液培养","尿培养","粪培养","引流胆汁培养"]
主动脉骑跨