制备脂质体采用（）
A.滴制法
B.研和法
C.熔合法
D.热熔法
E.薄膜分散法
参考答案：E
Larry asks Bill and Peter to go on a picnic with him, but ________ of them wants to, because they have work to do. [ ]
A. either
B. any
C. neither
D. none
上月开始缴存公积金，不知这月能否提取？需准备哪些资料？
