散打技术方法有：（）.
A.拳法
B.腿法
C.摔法
D.跌法
参考答案：A, B, C
Mary is crazy _______ playing the piano.
A．at
B．in
C．about
D．of
my colleagues and myself,I thank you. [ ]
A.In return for
B.In exchange for
C.On top of
D.On behalf of
