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

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

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

4?????????

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

????11?30?????? (???? ??)???30????????????????,11?????????????????50%,??????????????0.2??,????6?????50%?????????????????,????

?????,????,????0.3????????0.9?????;??;????????????????????????????????????????????

???,11??,???????????????50%,???????????????????,???????????,??????????60%??,??????;????????52%??,??????????;???????????????????55%?????????????,?????????????,?????????????????

???????????????,???????????,?????,?,???????????????????????????,??????????????????????????11???????????????,??,??????????????????????(??????????????????????) ??????:???