???????????2???13??????????? ?????????:???????“??????”??????????????????

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

??????20?????????????,????,?“???”???

???

????,????????????????“clean”(??)???,?14??????????:“?????????????????,?????,??????????????????,???????????????”

??,??????????????1999?????,?????????1????“??????,??????(???????)?????,?????????”

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

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

2???????????????13???????????,???????????73.73????????????????????? ??????? ???????? ??????????????????????

??????

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

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

???????????????,29???????????????“???????”??????“??????????(??????)???????,????????????,??”???????????????,?????,??????

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

??????

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

??????,???????????????????,????????,???????????,?????,???????????????1????????????????????,?????????????

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

????????????????“????????????????????????????????????”??????,?????????????,??????,??????“??”?????????????“????????????,??,????????????‘???????????’?????”

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

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

??

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