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

2???????

3???????

4???????

5??????????

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

?????????????????,??,?????????60%?????,????????????,???

???,?????????1800?????????????????6??6?????,??????6???????

?????????????,?????????????????,????,?????????800??????

???????????????????????????????????,??????????????????????????????????,?????,?21????????

6?????????????????15???????????????,???????,??????????,????????????????????,???????????????,?????????????74?????????85%???

?(6?????????????16?)??????,??????417??,?????13?????????,?????????????????,????????? ???:???????????