????????,??????

????:???????:?????????????

????????????????????,??,????????6??25????,?47???

???,????28???????????,?7??????????1??????????????????????????,???????????????????????48???50??????????,??1500??????,?,????????????,??,??????????????

??????????????????????????????????,??????????????????????90???,???????????????????1986?2005???????1.3??????4.9?????(?????? ?????????)

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