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

2?????????????

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

4???????VX

5???????

???????????1????????????????????????17???????? (???????????? ???)????????,????????,?“???????????????”?

????,??????????????????,????

???????????????,200??????????????????,??“????????”,??????“??”?

“?????????”??????

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

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

1992????????????,???????????,???,??,??????????????,?????????????“???”????????????,??????????????????????????,????????????????????

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

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

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

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

“????????????????????”????

???????????,????,??????????

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

1999????????????,???,??????????????,????????,?????2.4?????????,????????,??????????????

“??????,????????????‘???????’????????????????;????????????????????,????‘???????????????????????’??????????????????????”????????????????????????????????????????????????,????

????????????????????,????????????????,?????????

??,?????????,??????????,??????????????????????????????????????

??,????????????????????????????20????,??????????????????????,??

“???????”???????????????????,????

????“???????????”

?????,????????????

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

????????????,?????????????,???,?????

?????“???????”??????;????????????????????“????????”???????;???????????“????????”????“?????????????”……

?????,?????????,??????????

????7????(????????????????????)??????????,??????348????????,?????????????3318.2??????????,????

??????????????,??2???????????,????60%????????????????

???????????,????????????????????????????,??,??,?????????????????????????????????,????????????????????????????????,????????????“??????”??????????????????????????(????) ?????:???