乳状液膜工艺流程主要的步骤不包括？（）
A.制乳
B.液膜萃取
C.分液
D.破乳
参考答案：C
_____ the meeting himself gave them a great deal of encouragement.
A．The president will attend
B．The president to attend
C．The president who attending
D．The president's attending
皇子封王，始于汉初，以后历代相沿，遂成制度。（ ）
