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?????????9???????????????30????????? (????????????? ???)???????????????????,1963????,?5000??,???

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?????????,??????,???????40????,??????????????????1985??????????????,??????????7.4????,????????????,??,?????,?????????????100??,????????“????????1987???????????,??????????6????,??95%??????”

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?????????????????,???????70%???????????????????????????????30??????,??????“?????”????,?????“?????,????”

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