公务员处分的种类有（）。
A.警告
B.记过、记大过
C.降级、撤职
D.开除
参考答案：A, B, C, D
确定事件的概率是______．
______ he explained it to me did I make sense of what he said.
A．Hardly had
B．Not until
C．Shortly after
D．No sooner
