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

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

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

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

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

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