????:1???????:??51??

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

3?????

4????????????

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

??????????????????????8??31????? (??????????????????? ????)??8?????31????,8??????????????????????50.3%,??????????????20?????50%?????????????????,????????????????

??????????,??????????????,?????0.6??0.1??????????;????????????????????????????????????????????????????????????,????????0.3??????2???????????????

????????????,8???????,?????????????????50.3%,?20???50%??,????????50%???,???

??,???????8?????????????????,??????????????????????50.2%,??????0.2??,???????????????????????????????????,???????,??????

?????,?????,????????????????55%?????????????;?????????????????,?,???????????????60%???

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