?? ??????????????????
????:1?????????:???????
2???????????
3?????????
4????????
5????????????
??11??27???????????? (???????????????????? ??)????????????27?,???,???,?????????
?????,???????????????????????????????????????(???)??????
????????????????????20???????????,????11????????????????????22?,??????????????????70?????????????????????,???6????????????????????
??????300????????,?8.6%???????????8.7%???????????,???????????,??(???????) ??:??????????????????