????:1???????:?????????

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%???????????????

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