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

2????????

3?????200?????

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

5????????????

??????12???20????????????????? ??????????,??????????????,???,???,?24???

?????,12???????????17??????????19?????,????“???????????”???????18??????1000??????????????

??????,???????????24%,?;?48%,????8???

?????????????????,????,????,??? ???????:???????????????????????