?????????? 7??????

????:???????????:????vx

??:?????? 7????:?

???????????????(????????????):?????(8????????18????)??????,???????????,??????,?????????????????????,?????????????????

????????????:7????,?????????,??????????6%,??????????1.7?????????

?,??????????13.3%???????????????????????????????????????

?????????????????????????8.5%,??????????????2.8??????????????,??????????????????7.2%???????14.8%,??????????????,???????????????8.5%????11.7%,?????????????

??,??7????,??????????7.3%,??????8.5%,??67.4%,????????????????0.7??? ???????:?????????????????????????????