题目内容

关于液体制剂的溶剂叙述正确的是（）

A. 乙醇能与水、甘油、丙二醇等溶剂任意比例混合
B. 5%以上的稀乙醇即有防腐作用
C. 无水甘油对皮肤和廿膜无刺激性
D. 液体制剂中可用聚乙二醇300~600

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