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1?????31???2?2?,???????????????????,?????????????????????????,??????????2~4??????,??????????6?????,??????????,?????

2?????????2???????????3??,??,????????????4~6?,???????????????????????6~8?,??????4~5??????,????????????????7~8???????????????????6~8????????????9??????????????,??,????????????,?5~7???????????????????8~10?,????????????????11??????????????

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1?31????08?2?1????08??,??????????????????????????,??????,????????????????????????????(10~15????????)??????????????????????????????????????????????,??(25~30????)???????5~7?????????8~10????????11?????????

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