????? ????????

????:?????????:??????????

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

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

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

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

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

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

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