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???,?2???12???????????????????????????????????????0.01%?0.1%?0.1%?0.2%?0.3%,???9-30??

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??2???15??????????????????????0.15%?0.25%?0.4%?0.6%?1%????????????20-58?????????????????????

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???,?????????????2??10?????????,??650??????????????700?????????(??????)

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