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

????:?????98????:???????

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

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

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

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