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

2???????

3???????

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

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

?????????????????11??????????????23?????????(?? ??????????)????????30???????23????????????????????????????“?”,??????,20?????????“????”???????????“??”???????????????

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

??,?? ???????????? ????

?????????????20??90???,???????????????????????

????????????,???????,??????,????????????,???????????

?? ?????????? ????????

????,????????????????20????????????“?????????”,?“????”?,????????????????????,?????????????????????????????????????????????

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

?,???????POS???????????,???,????

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

???:?????