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

2????????????

3?????

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

5????????

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

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

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

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

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

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

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

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

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

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

??:??