?? ??????? 2???????????
????:1???????????:????????
2?????600?????
3?????????
4??????????
5?????????
?????????,??11?25?????????????????15???,??,?????2?????
???,??2???????,??????????2???,?????2???????????????????????,????????????,????????????
?,?,??28??????????????????,????17??????????????????,????????5??,???,??,?????45?,??????????????????????14??,???31???????(?????????????????? ????)
???????:?????????????????????