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

2??????????

3???????

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

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

?2?????????12??(??????????????????? ?????)?12????????????,?????????????????????????,?????????,????????????,???,??20%?

2????????12?,??????? ???????????

????????????????????,??,??????????????????????15%?

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

????????2?????????????????????????5????????????,??(???????????????????)

????:??