中鼻甲后部附着于()。 ["筛窦顶部","筛骨水平板","蝶窦前壁","鼻腔外侧壁的后部","蝶骨中壁"]
原发性肝癌与肝硬化的鉴别,下列哪些有利于前者的诊断() ["脾功能亢进","肝区持续性胀痛","肝脏进行性肿大","腹壁静脉曲张","腹水转为血性"]
某患者在胃大部分切除后出现巨幼红细胞性贫血的原因是对哪项物质吸收障碍() ["蛋白质","叶酸","维生素B12","铁","红细胞生成素"]
对某病爆发流行进行调查时,首先应采取的措施是() ["一般情况(人口资料、自然和社会状况)调查","计算各比较组的率","证实爆发的存在","形成有关致病因素的假设","采取相应的防制措施"]
急性重症胰腺炎时常可出现下列哪些异常() ["血白细胞升高","代谢性碱中毒","血糖升高","血细胞比容升高","血压升高"]
什么是癌症的一级、二级和三级预防?