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

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

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

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

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

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

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