胆石形成的原因是()。 ["胆汁中胆汁酸盐减少","胆汁中游离胆红素增多","胆汁中胆固醇增多","胆汁中有异物如蛔虫卵","以上都是"]
ST段下移类型不包括() ["上斜型","水平型","波浪型","下垂型","盆型"]
远端肾小管性酸中毒(Ⅰ型)的肾功能障碍是() ["远曲小管排H+↓","近曲小管重吸收HCO-3↓","远曲小管排H+↓和近曲小管重吸收HCO-3↓","醛固酮作用↓","肾功能衰竭"]
持续性枕后位用胎头吸引器助产时,一般应将胎头向前旋转多少度方可以枕前位娩出() ["30°","45°","60°","90°","135°"]
胆汁的三种主要成分为()。 ["胆色素、胆盐、磷脂","胆盐、钙盐、胆固醇","胆固醇、磷脂、胆盐","胆固醇、胆色素、胆盐","钙盐、磷脂、胆固醇"]
应与湿疹鉴别的其它皮肤病主要有()、()、()等。