预授权类交易包括（）
A.预授权
B.预授权撤销
C.预授权完成
D.预授权完成撤销
参考答案：A, B, C, D
1.______you were late for school, for you got up late.
A．No hurry
B．No problem
C．No worry
D．No wonder
生长发育的整个过程反映了小儿的（）特点。
