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

2??????????

3???????

4?????????

5?????????

?????2?????5?????????????? (??????????)5?,20??“?????????????????????”??,???????????????????,????????????230?????????????

??,?????,???????????20?????????80??????????????,?????????????????????????????,??????

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

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

?1990???????,30????,???,?????????????,“????????????????????????”?

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

“????????,?????????????????????????????????”???????,??????????????????(???)???????????????,???????????????????,?????,????(?????????) ????????????:?????????????????