?? ?????16.2??? ?????????4.7???
????:1???????:????????
2???????
3???????????
4???????
5???????
???12??26?????????????? ?????????,????????????????????,????????16.2??,????4.7??????????????,????2.5???;??????????8000????????????,????????????3000???,??2300?????????????????
??,?43???,??11.7%??;??51.8?????,?????3%???????,??????
??????:???