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2?????????????

3????????????

4?????ktv

5??????????????

?????????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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