需氯量等于（） ["加氯量-余氯量","加氯量+余氯量","加氯量×余氯量","加氯量÷余氯量","以上均错"]
宫颈癌发病的相关因素（） ["种族","经济状况","过早性生活","地理环境","多产"]
特应性皮炎常合并（） ["斑秃","白癜风","幼年白内障","传染性软疣","以上均是"]
与胃癌关系不大的肿瘤标志物是（）。 ["FSA","CEA","CA19-9","CA50","PSA"]
治疗阵发性睡眠性血红蛋白尿不正确的措施是（） ["输注洗涤红细胞","输注右旋糖酐","应用糖皮质激素","维A酸诱导","骨髓移植"]
先兆流产保胎治疗的前提及原则。
