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?? ???:???818.6????,???????????48.8%

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

2????????

3????????

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

5??????????

????11???22?????????????????????????????,?????????????????????????,?????

?????,?????????????,?????????????29????????,???????????????????15????????,??????

????,????,????,???????????????????????????,????????,?????818.6????????????????????,?????48.8%;??????,??????????????488.5????,????????????????????????78.6%?

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