?? ???????????:????818.6???,???48.8%
????:1??????????:????
2??????????????
3??????????
4????????
5???98?
?????11?????????????22???????????????????? ????22?????????,??????????????????,????
???????????????,????????,??????????????????29?????,????????????????????????15?,?????????????????????
???????????,???,???????,????????,???,??????????818.6??,??????48.8%;??,?????488.5???????????????,???????????78.6%?
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