???????????????

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2???????????????????????????????10??????????,???,??????(????????????)??????????,8????????,????,????,??????????

???,?????????,?????????3??????????????????,??????????700?????????????????????????????????????????,???98.2%?

??????(?????????)?????????8????,????70????????52???,?????????????????20??????

?,????????2???????20?????1?15?,????500???????????,??????????(???????????? ????????????????)

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