?? ???????????:???818.6????,???48.8%
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2???????????
3?????????????
4??????
5?????943t
????????11???????????22??????????????????????????????,??????????,???????
???,???????????,??????????????29????,???????????????????????????????????????15???,?????
?????????????,?????,??????,????????,?,?????818.6??????????,???????????????48.8%;????????????????????,????488.5??????????????,???78.6%?
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