????:1?????600???:??????????????

2???????

3??????????

4??????

5???????

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

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

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

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