????:1??????????:???

2??????

3????????

4???????

5?????????

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

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

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

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