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

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

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

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

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

“??????,????????,???,????”?????

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