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

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

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

4??????????98?

5??????vx?????

??????????9?????????20?????????????? (??????????? ?)“??,‘80???????????????’‘90???’????????80%?”??20??????,??IP,??,“??”???

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

4?2??????,??,?????? ????????????? ????????

??,????1??8??,?????1.16?,?????903.8????????????,???????14.2%?16.1%,??????????????????????15.7%?

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

???????????,?“??????????????????????????????????????”?????,?“????”“???”??????????????????IP??????;???????????,??????????????????????????????“??”?,???????;????????????????????2000?????????????,??????“??”????“?????????”?

????,???“????”,?????,??????????102????????,?????200??????????????????????

???,?????????,????,“????‘80???’‘90????’??80%”?

“???”????10?????,?????????????“80????”??????,“???????????????????????,?,??????????,?”?(????)

????:????????????????