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

2?????

3???????

4?????358???????

5??????

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

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

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

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

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

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

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