11????????50% ??????????????

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

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

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

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

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