????????????31????

?????????2?????????14???????? (??? ?????????)?14??????,?????????????????????8.5??,?????39.2%,??1993????????,?????????????,?,???????????,?????????????????????????????????

?????,???????????,???????????????????????????????“???????????,????‘??’??????????????????????????‘?’??????????????????,?????????50%,?,???????????”????????????

????????????????????,???????????????????????????????????????????????????????????????,??,?,?80????????

????????????????????12???????????????,????,?????????

“?????,??,???,????”???????

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