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

2?????????

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

4?????150??

5?????????????

??1?????23?????????? ?????,?????????????????22???,?????,??????????????????????????????????,??????

?????????????,??40??????????(?????NGN),?????????«???????????»??????«?»???1996???2011??

????????,NGN?,“NGN???????????????«?????»????1996???2011???????????(??)??,????«?????????????????»???????????????????????????,??????????”

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

??????,???????????????????????NGN???????????«?????»?????,????????,???????????????????,?????1000?,???????????

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