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

2??????

3??????

4?????????

5?????300?3??????

?????????9??????????15.7%

?9??30???? (????)????????????????9???30???(??????????????????“??”)???????,?????????1-9?????????,?2304?,?????????????????????????23.7??,??15.7%?15.3%?

9??18???,????????,????(????)?????????????????,????????“?”????????????????????,??(?)???530??,????????????????????????

????,???7???????????230?????????,??,???????????,?????????????????????????????????60???

????6?15??,???????????????30?????????????,???????????2900?,????????????????????????1.77?????????????????????17.27?????????????,???19????13????

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

??????,???????????????????,?????“????”?????????,???(???) ????????????:????????????