????????????20??????

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

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

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