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

2???????????

3?????????

4?????

5????????

????,11????????23?????????27??????,????????????,???????,?6??????????????10??

??,??,???,??????????,11??24?25???????????????,????????????,????????,???????,??,?????????????????????,???????????,25????????,????,??????????????25????????

????????,11??????????????25?????????????????27?,????????6????????,???????????????,????26???27???3?,27???-5??(????)

?:??????