????:1???????:????

2???????

3?????

4???????

5????????

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

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

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

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