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

2???????

3???????

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

5??????????

????????(??):????????,???????????,?????????????????,????????

???,???????,????????????????????10??,???????????????,????????????

10????????,????????????????????????????,????????????,????,??????,?????

????????????6000???????????????????,???????,????????????,?????????

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

???,????6?????????????13???????????????,???????

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