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2?????????

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5???sn??

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???????????????,???????,?,1966????????????7?????,?????,???1986????7?,1986???6???

1986??7?1987??????????10???,?;

1987??10??1998?????????????6?????????????????????,??,?????????;

1998?6?????????2005????????9??,?,?,?????????????;

2005??9??2013???????????12???,?????????????????,????????????????;

2013??????12?2018?11?,?????;

2018???????11?????,????????????????,?????? ??:??????