常见的脂质体制备方法有哪些？
参考答案：
薄膜分散法、注入法、超声波分散法、逆相蒸发法和冷冻干燥法。
---Pardon? I didn’t hear you just now.
---I asked .
that Michelle Obama came to China in March
how long did Michelle Obama stay in China
when did Michelle Obama visit Chengdu
who Michelle Obama came to China with
幕墙工程的防雷装置应单独接地并与主体结构的防雷装置分开。（）
