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????????????2??17??????? (??????????? ???)?????????????????17??,?????????,2????????13???????????16??????????????????,???????,?72?15.3?,????????????;????????10??48?6.5?~10.9?????,????????;????????????????4????????
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????????????????????2??18?????2??22??????????,?,?????????????????????,??????????2??????????19?2????????20?,???,??????,??????????????,??????????,????(??)
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