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2????????????

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5???????

??????????????????2??????????13?????????? (???????????????????? ??)????13??,???????????????????????????????????????????,???????????

???,???????,??????????????10%??????????????????,?2000?????????????(??)(???????????,??)????1????,???10?;?????1???????????????,??????10???????????,??10??????????,??100???????,????????????????3????????????????,??????????1000???????

?????,?????????????,?????,??????????????????????????????????????????????,?????;?3??,??50%???????????????;?????????,????

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