????:1???????????:????vx

2???????????

3???????????

4??????????

5??????

??????????:??????????????“??”?,????????????,9??????????????,????????????????,??????????????

????????,?????????????8?????,???

???????????????,9???????,????23.3??,???????????????????18.09%,?????????????????8??5.21%,????,?????????,?????????9????,???8?????????????13%,???????,????????10???????????????

?????,??????????,??????,??,??????????????

?????????? 9?6.17%

?,????????????“????”????,?????????

??????????????,???????????????????,?????,????????????,??????,?????????????,???,??????????

??,??????????????????????9????,????????,??????????????????????????????????

????????????????,9??????,???,??,??????,????????????????????????,9?????????,????????????10.84?????????,???????????6.17%,???????????6.47%? ????????????:????????