????:1???????:??????

2???????

3?????24??????

4????????????

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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