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2???50??????

3?????

4??????????????

5?2019????

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