???????????????
???????????????????????????2??????5??????(?????)5????????????????,???????????????????????????????????
5??,??????? ???????????????????????????? ?????????????,???,???“?”,???????“?????”???????,???“????????”???????????,?????,??“1+N”???????????????,???“?????????”?????,??“???????”,????,???????????????????????????????
??????????,????????????????“?????????????????????????????????????,??”?????????????????????????????????????????????,??,????????????
??????1990??????????????,???????????,?,???????????,??????????????????,“????????,???????”
“??????????????????????????????????,???????????????,????????,??,???????????”??,?,???
??,????,??20??????????????“?????”????????,?????????????,???????????230?;??????????????14????,?????;????16?,??????????????????10?????????10?????,6??,???(???)
?????:???????