关于肛管癌正确的是() ["A．多为鳞癌","B．适合Miles手术","C．适合Dixon手术","D．适合Hartmann手术","E．无淋巴转移术后行双侧腹股沟区放疗"]
以下哪些是大肠癌化疗适应证() ["A．术前化疗","B．术中化疗","C．术后辅助化疗","D．晚期不能手术者化疗","E．放疗同时化疗增敏"]
GD-DTPA的临床应用剂量为() ["A．0.1mmol/g","B．1mmol/g","C．2mmol/g","D．3mmol/g","E．4mmol/g"]
降低颅内压、减轻脑水肿最有效的常用方法是_____。
属于胃癌癌前病变的有() ["A．残胃","B．胃溃疡","C．大肠型肠上皮增生","D．腺瘤性胃息肉","E．异型上皮增生"]
急性枕骨大孔疝的临床特点是_____。
