根据决策条件和状态不同，决策可分为哪些类型？（）
A.确定型决策
B.风险型决策
C.不确定型决策
D.程序型决策
参考答案：A, B, C
– What did that lady ask you just now?
- She asked me＿＿＿＿＿＿.
A．who was I waiting for
B．whether could I help her
C．how she could get to the bus stop
D．what has happened
