?? ????:???????????818.6???,???48.8%
????:1?????????????:??????
2?????500???????
3??????????
4???????
5???????
???11??22??????????????? ?????22????????????????????????,????????????????????????????,??????
????????,???????????,?????????????29????,??????????????????????15????????,??????????????
?????,??????,??????????????,??????????,????????,????818.6?????,????48.8%;????,???????????????488.5?,?????????????????????78.6%?
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