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

2?????????

3?????????

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

5?????????

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

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

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

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

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

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

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