?? ?????????16.2??? ???4.7?????
????:1???92:??????
2??????v
3?????????????
4???????
5????????
??12????26???????? ???,??????,??????????16.2????????????,??4.7?????,??2.5??;?8000????????????????,???3000?????,?????????2300???
??????????????,?????43???,?????11.7%??????????????;????????????51.8??,????3%???????,???
???:??????????????????