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????,???????????2??12???????????????????????????0.01%?0.1%?0.1%?0.2%?0.3%,?9-30????
???2???????????15??????????????????????????????????????0.15%?0.25%?0.4%?0.6%?1%???????????????20-58???????
???,????????????????????2??10?????????????,???????650????????700????(???????)
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