???12????10????????????????? ?“??”????9??,?????????????,???10??????????????????12??,??44.3???,??????????????????45%?

???170???,?????????????????????,???????5.5?????,????280???????

??????,??????????19%,???9.85????????????????????????,????????????????????,?????????,?????????????????????5.568??

??????,???21??170????????,???????????????????:“??,????????75????,??????????????????”(??????????????) ???:?????? “????”????

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

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

2???????

3???????

4??????????

5????????

???12????10????????????????? ?“??”????9??,?????????????,???10??????????????????12??,??44.3???,??????????????????45%?

???170???,?????????????????????,???????5.5?????,????280???????

??????,??????????19%,???9.85????????????????????????,????????????????????,?????????,?????????????????????5.568??

??????,???21??170????????,???????????????????:“??,????????75????,??????????????????”(??????????????) ???:??????