第2题: [单项选择]药物以离子状态分散在分散介质中所构成的体系属于() A. 溶液型 B. 胶体溶液型 C. 乳浊型 D. 混悬型 E. 固体分散型 参考答案:A 答案解析:本题考查的是药物的分散体系。溶液剂是药物以分子或离子状态存在分散于分散介质中形成的非均匀分散体系介质中。乳浊型是油类药物或药物油溶液以液滴状态分散介质中所形成的非均匀分散体系。
第19题: [单项选择]What approximates the signalQ94;attenuation of a plasterboard wall?() A. Crowd of people B. Office window C. Metal door D. Brick wall 参考答案:B
第35题: [单项选择]What does the woman mean A. Say he was sorry to ask. B. Try to find another seat. C. Sit down and have a est. 参考答案:B 答案解析:[听力原文] M: Um... Excuse me, Er... Is this seat taken W: Well, I’m afraid it is.