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

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

3???????????

4????????

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

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

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

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

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

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

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

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