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

2??????

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

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

5???????

?2??????????????5??????????(????)5??????,??????????????????????

5??????,?????? ????????? ??????

????,????,?“???????????”,????“??”??,???“???????????????”???????,???,??“1+N”????,?????“??”??????????,???????“???”,????????????????,???????????????

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

????????1990???????????,??,????????????????,???????????????????????????????,????????????????????,“??????,??”

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

?,??,??20????“?????”??????????,?????????????????????????????,????????????????????????????230??????????;???14????????,??;???????16?????,?????10????????10?,6??,?????????(????????)

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