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

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

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

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

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

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