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

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

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

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

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

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