???????????“???????????”??,???

????:??????:?????????

???? ????????????????:?????????

10??????????8??????????,???(????? ????)?????????,??10??11??,??????????????????????????????30.6%-39%???????,???,?????????????

??,???????200????????(????????????????),????????????,????:?=(????????????????????×????????????????????)×(1+?????????????????)÷(1-?????????????????????)?

?,???,?????????????30.6%??????????????????39%???????????????38.1%,?????34%?????????????????39%???????????????

???????????????1???????????????????,??????????8?????????29?????????????????,?,????????????8???????????????????,???

????,????????????????????????????????1-8??,?????????????????????????13.4????,?????????21.2%,???????????????8????,???????21.8%,??

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

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

WBO?????????????,????????????????,?????,??????,?,??????,?????????????????????;??????????????,???????,??????? ???:??