????:1????????:?????????

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

3???????

4????????????

5???????

? ?:????

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