直肠阴道瘘修补术后处理,下列哪些正确() ["A.保持会阴部清洁","B.术后留置导尿管5日","C.术后进食无渣半流饮食","D.保持软便","E.术后5日排便后拆除皮肤缝线"]
肛周化脓性汗腺炎的西医治疗,下列可选用() ["A.敏感抗生素","B.肾上腺皮质激素","C.抗雄性激素","D.50%硫酸镁溶液","E.X线照射"]
肛门湿疹临床症状中可出现() ["A.瘙痒","B.肛门潮湿","C.疼痛","D.腹股沟淋巴结肿大","E.出血"]
肛门瘙痒中医外治疗法,下列可选用() ["A.枯矾干粉","B.青黛膏","C.黄连膏","D.银灰粉","E.九华膏"]
何谓退火?退火的目的?常用的退火方法的哪些?
如何判断导体接头发热?