????????? | ???????2015-05-29 11:47 | 40407??????: |
??????????11-12??????????? ????????????????????????11-12???????????????????????????ɡ? ???????12???????? 6??500????? 18??15????? ????????? (6*500+18*15)/8.5*12=4617?? ????????8500???? ?????13000???? ???????????11-12???????????????????????????????? ????????????????? ????????????? ??????????? ???????~~ |