?? ???????????:????818.6???,???48.8%
????:1??????????:???????????
2??????????
3???100???????
4?????????
5??????????
????11???????????????22??????????? ????????????????????????22?????????????????,?????????????,???????
??????????????,??,???????29????????,?????????????????????????????????????????????????????15????,??????????????????????
???,????,??????????,?????????????,???,?818.6?????,????????????????????48.8%;???????????,???488.5???,?????78.6%?
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