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

2?????????

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

4????????

5??????

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

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

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

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

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

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

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

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

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

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

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