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