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

2???????

3?????

4?????wx

5?????????

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

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

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

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

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

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

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