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2?51??????

3??????

4???????????

5???????

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

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

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

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

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

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

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

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

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