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2???????
3???????????
4??????????
5??????
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????3000?????????????,??????,???????5100???????212????,?????????????1600??160??????????????????????,??????????,???32????????35???????
???9000???,??????????,????????????????????5%??????????20%????????????,?????????90????????,?????2500?,??60%??????
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??6600???????????,?????,???????????310???,??????1.5%???????
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