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2??????

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

4????????

5??????

?6?22? (??????????????????? ???????????)?6?22??10?????,??,??????????,??

???,6???????15?????????????16???????,????,??????????????,???????

6??20?????????????21??,???????????,???????????????,?????????????????????????????????????????17.7???????,???????????185.7????????????

????????????,???????????,????34%,???????????????6??15?????????30%,??????????????14%,???????????27%,????????????????????????????????????

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