?? ????????:??????,????75????|???????
????:1????????????:??????
2??????????
3????????
4????????
5??????
???????????????:???:?????? ?????????|?????????????:???????????
???????????????10???5????????(???? ????????????????)“????????????,???,”?????????????????(Robert Walker)??
??????75????????????,?????????“??????????”?????????,???????????,???????
??18???,????
“??,??????8?????????????????,”???,“??,???”
????,???????????,“????”“??”????
?:?? ???:??????? ???????????“???,???????????,?,????????,?????”
?????????,?????????????????,?????,??,???????“?????????”
???????,??????????,???????????“????????????”????
??????????????????,????????,??????????????,?????
??????????75???75??????????????,????????,???????????????,????2030????????????????2050???,???????(?????)
???????????:?????????