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2?????????

3???????????

4?????t???

5???????

?????????????1??????????6? ????,???,??

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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????????????,???????,????????????????????? ??????:??