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

2???????

3?????????

4?????????

5??????????

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

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

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

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

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

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

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

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

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

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

????:???