???2???????????????????8????????????????? (?? ??????????????????????)???????????????,?500??????????????????????,?,???

??,?????????????????,???,???????????????:“?????????????????????????????????????,???????”

????????????,??,“??????,??????”?(???) ???????????????:??????????????????? “?????200??500”????

?? ?????????:??????????????????

????:1??????200??500:????

2????????

3?????????

4???????????

5??????????

???2???????????????????8????????????????? (?? ??????????????????????)???????????????,?500??????????????????????,?,???

??,?????????????????,???,???????????????:“?????????????????????????????????????,???????”

????????????,??,“??????,??????”?(???) ???????????????:???????????????????