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

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

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

4???????

5??????V

???1??5??? (??????? ?)??????????,???????1????5???,????41??????????????????????????,??

?1985?????1??5????????,???????,????

1???????5??,???????????41???? ?????????????? ???????

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

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

???????????,????????????????????????????????????,????,?????,??????21.3%,??????,??56.3%???????,??“???”??????“?????????????????”,??????????????(???????????)

?????:????