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

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

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

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

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