??????????:????“??????”

??

??????????,??????????????,???????,???????????????:????????,????????????,????????,?????????????

??????????????1987???????????,????????????????????“??????”,???4A?????????????,????????????????,??????????,??????????,???????,?????

???????,????????,???????????????????,???????????

(?? ????? ????????????)

?????????:?????

?????????

???????????????:????“??????”?????

????????