?

        ??????????????????????????60%?????????????????? ??????????????
1??????????????????2-3?10-15??13-5?
2???12??????????????1??
3???30??10???????????2-3
4????5??????????2-3????1
5??30??60?30?????????????1-2?30????
6???????????(3)?(15)??????
7????????????20??2000??15-20??13-5?
8??????????(???3)???????3-5
??
1?????????????????
2?????????????
3??????????
 
??????????


?30+??????