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

2?????

3?500?3?????????

4???????????

5?????

????????,???????,??????????????????????????

??????????????,????????????,????42.3???,??????????15.3%,?????????????50%,???????111?????,?,??????????????,????????????????7.3????

?? ??????:??????????????11????,?????????????????6400????????,?????????????????35%,????,????????????1/3,???

??,??????????????????,?????????????,?????,?????????????????????,??????????????????

(?????)

???:?????????????????