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

2??????????

3???????????

4??????????

5???????????

????????????7????????6??????????????? (??????????????? ???????????)????????????????,6???????????500?(????????,???????????)?????,???????????????????,?????,????

????????????5???,???????????,6??“?”????????????5?1??3?????,????500??????????????

????,?????????“??????”???????,??,?????500?????,??????????????,???????????????????????????

????????,??4?????????????,????????1??90??,?????????

??????????????,??,????????,???????????,???(??) ??:???