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

2??????

3???????

4????????

5????????

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

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

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

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

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

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

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