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

2??????300??

3???????vx

4?????????

5???????????

????????????????????12??30??????????????(????????????????)?,?????,??????????????????,???????

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

??????????????????????????

??????????????????????????????……????,???????,??,????????????????????“?????????,??????????????????‘?????????’????????,????????????,?????????”?????????

??,??????,????,??????“?????”???????????????“???????????????????????”????,????“??,????????????‘??’??????????????????,???????????????????”????,???11?????,?????11.42????,???????????????4.29%?

????,??????????????,??2????2000????????????????????,???????????????????,?????????????“??,?????????,??,????????????????????????”????????????(?????????????)

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