下列哪项不属于肝癌的组织学分类() ["肝细胞型","胆管细胞型","混合型","纤维层状型肝细胞癌","鳞癌"]
试述检修后的吸收塔出、入口烟气挡板的调试步骤及方法是什么?
甲型病毒性肝炎病程中传染性最强的是() ["潜伏期","黄疸前期","黄疸期","恢复期","慢性期"]
对于颅内肿瘤,目前最常用的化学药物是() ["噻替哌","5-氟尿嘧啶","争光霉素","环已亚硝脲","环磷酰胺"]
上腹部CT检查前口服泛影葡胺浓度一般为() ["1%","2.5%","10%","4%","5%"]
试述急性肾衰竭的治疗原则。