能够区别气管闭合性损伤与咽、食管闭合性损伤的选项是()。 ["呼吸困难","局部疼痛","皮下气肿、纵隔气肿","咯血","病史及局部检查"]
X线明确显示骨折愈合,最早始于() ["成骨性肉芽组织形成期","纤维性骨痂形成期","骨性骨痂形成期","塑形期","骨折后24小时"]
流行病学实验研究的人群来自() ["同一总体的患某病的患者","同一总体的健康人","同一总体的暴露人群和非暴露人群","同一总体的干预人群和非干预人群","同一总体的病例人群和非病例人群"]
治疗红斑狼疮性脂膜炎的首选药物是() ["皮质类固醇激素","氯喹","环孢素","氨苯砜","硫唑嘌呤"]
缺铁性贫血患者给予补充铁剂治疗时,血红蛋白正常后,仍需继续补充铁剂()。 ["1~3个月","3~6个月","6~9个月","9~12个月","一年以上"]
肠梗阻的诊断要点