???2?10?????????????(??????? ??)????“??????”????

????,???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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