水/油型的乳剂中，作为内相的是（）
A、水相
B、油相
C、乳化剂
D、液相
E、气相
参考答案：A
He bought a nice birthday present _______me. [ ]
A. to
B. for
C. with
D. on
They ______ a small laboratory and devoted every spare moment to this work.
A．picked up
B．put up
C．set up
D．grew up
birthday present _______me. [ ]