?? ?????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%????????????????????,????
??????????????????:???