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

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

???????6??6????????? (???????)6????,??“??????? ???????????????”?????????????????????,????,??,?????????????

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

??????? ???????????????

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

20????90????,“???????”??,????????1997?????,??????????????????“????????????”?,2.4?“??????”??????????????????????????????????????,“?”???????????

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

????????? ?????????????

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

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

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

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

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