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

2?????

3???????

4?????vx????

5??????

??????????????????????“??”??????20?????,????

?????????“????”??20???

?,????,???????,95%?????????

2004??????,???????,?????????????????????

2005?,?????????????,???????????????,??1000???,???????????????(????),????10????????,??????????????“??????”?

“??????”????????????????????,???????????20?????????????????,?????????????,?????

?????????“????”?

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

?????,???????,???,????????????,??????,??????,????????;

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

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

???????“?????????????????????????”?

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

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

????,????,????????????10????????3????????,????,????,???

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

(????? ?? ???) ??????????????:?????