IgE结合因子(IgE-BF)是()
A．CD16
B．CD21
C．CD32
D．CD64
E．sCD23
参考答案：E
Let _____ go to the zoo together.[ ]
A. us
B. our
C. we
D. ours
虚证痛经的治法为( )
A．行气散寒
B．通经止痛
C．调补气血
D．温养冲任
