?????????1?????????? ??

????(?????):?????????(2????????????14?)?,???????????1??????????????,???????????,??

??,1?,????M2??318.52??????????????,??????????????7%,???????;1??????,??7.06????????????,????????????5.13?????

???????????,??????????????????????????????12.7%?????????11.4%,????????????“??”“????”??,??????????

1????,?????????3.4%,???0.4?????????,???????????????,????????,??? ?????:?????