20．叶酸、维生素B含量少的是()21．以白蛋白为主的是()22．以酪蛋白为主的是() ["A．母乳","B．牛奶","C．全脂奶粉","D．羊奶","E．酸牛奶"]
咽异感症
打鼾
血管母细胞瘤可合并() ["A．神经纤维瘤病1型","B．结节性硬化","C．Chiari畸形","D．VonHippel-Lindau病","E．神经纤维瘤病Ⅱ型"]
婴幼儿期维生素A的需要量为()5岁以上儿童维生素A的需要量为() ["A．100μg","B．200μg","C．300μg","D．400μg","E．750μg"]
饮食反流
