????:1???????200??500:?????????????

2??????????????

3??????????????

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

5???95??98???

??????????11????????27????????? (???????????????????? ??????????)????????????27???????,?????????????????,?????,?????????

?????,????????????????????(???????????)???

??????20???,???11???????????????????22?????????????????????,????????????????????70???,???6?????????????

??300?,?8.6%??????????????????????8.7%?????????????????????,???,????(??) ???:??????????????????