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2???????100?????

3??????????????

4??????????

5??????????

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

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

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

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