?????? ????????

????:???????30??:?????

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

?????,??200???????????6.2%????????4.5%?

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

??????,??????????10%??????,??700??????????????

??????????????????2.7???,????1.5????????????????????

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