?? “???50??”??????
????:1???????????:??????
2?????
3????????
4?????
5?????????
??11??25???????????? (? ??)??????50??,“??????????????50????????”24????1500??
????????????????????????????????????????????????????????
????????????????????? ??? ??????????? ???? ???????1500??? ??? ????? ?? ??? ?? ??????????????????????????? ?????????????????????,????????????????????????????????????????,????????????,????????????????????????????????????(????????????????)
?????????:???????