在高分子囊材(如明胶)溶液中加入凝聚剂,使囊材溶解度降低而凝聚并包裹药物成囊的方法( 发布时间:2017-04-17 11:27 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在高分子囊材(如明胶)溶液中加入凝聚剂,使囊材溶解度降低而凝聚并包裹药物成囊的方法().A.单凝聚法 B.复凝聚法 C.溶剂-非溶剂法 D.改变温度法 E.液中干燥法
题型:单项选择题 我国地貌景观可分为花岗岩山地、岩溶山水、丹霞地貌等,下列哪一组景观是上述三种地貌景观的典型代表( )。A.张家界、桂林山水、龙虎山B.黄山、路南石林、武夷山C.华山、庐山、雁荡山D.嵩山、雁荡山、丹霞山 查看答案
题型:单项选择题 用所给词的适当形式填空1. ______ is the boy over there? (whose)2. ______names are Tom and Jerry.(they)3. What are______ in that box?(that)4. My shoes_______ under the bed.(be)5. They are new here. I don’t know ______ .(they)6. ______ toys are Lucy’s.(this)7. This is my teacher. _____name is Wang.(he)8. Tom is a friend of ______.(my)9. His mother ______ a bike. It’s black.(have)10. There ______ a pair of trousers on the bed.(be) 查看答案