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

2?????????????

3??????

4???????

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

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

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

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

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

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

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

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