第14题: [单项选择]A. He was fired from his job. B. He was warned about being more punctual from now on. C. The management cut his working hours. D. He was promoted. 参考答案:B 答案解析:[听力原文] M: I came as soon as you called. Is there a problem W: Yes. Mr. Chu. You must begin ge
第19题: [单项选择]属于微囊的制备方法的是() A. 乙醚注入法 B. 逆相蒸发法 C. 超声波分散法 D. 溶剂一非溶剂法 E. 薄膜分散法 参考答案:D 答案解析:微囊的制备方法包括相分离法、物理机械法和化学法三大类。其中相分离法包括:单凝聚法、复凝聚法、溶剂-非溶剂法、改变温度法、液中干燥法;物理机械法包括:喷雾干燥法、喷雾冷凝法、空气悬浮法(又称流化床包衣法