?? ??10%????????????????
????:1???????????:????????
2???????500?4???
3????????
4?????????
5????????????
????????????2???????2??? (?????????????? ??)??????????????10%?????????,??????2??????????,???????????????????????,???????
??2????1??????????????????8???????????,????,?10%?????
????,?????????,????????,????????????????????,???????????????,????????
????,?????????????,???????????,??,????????,?????,????????????,??,??(??) ????:??????????????????????