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

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

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

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

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

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

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