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

2???????

3???????????

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

5?????????????

?????????????????????????:???12????????????????????,????????(12?1?)???????????,??????????????,??

“????”?????

??????????????????????«????????????????????????»12???????????????1???????????????,«??»???????????????????????????????????,????????????????????????;??“??”???????????????

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

12????????????1??,???????«????»?????«????»????????????????????????????,???“??”“????????”????????????????:??????????????;???????????????;????????????????????????????????????????,????

??

?????12?????1?????????,«?????»??????????,??0.5??????????????????????????????,?????,???????1.5%,???1%,??0.5%(???????????????)?

???

??????????????????????«??»,???????????12????1?????????,??????,??????20%??

??:??????