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