?? ?????????????????????
????:1?????:?????
2??????
3??????
4??????????
5??????????
??1?????2?? (? ?????????????)2??,??
?????????,??????(CENI)????????????“????”?????????????????????“??”????“?????????????????”?????????????????????
??????????????,??“??????”??????????????????????
?????????,??????????“??????????????????????????????”???????????????????????????????,???????????????????????2000?????????????“4+N”???,?????????????????,??????????“??????????????????”??,???(???) ???:??