????:1????????????:????????????

2????????

3??????

4??????????

5???????????

?????????????????????8???8??????? (??????? ???)???,????,??????????????????,????

7????????,????“????”?????,???????????????????(?????)?????????????,???????“??”?

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

?????????????????,??,??5????????????,??30???“????????????”??????????,?????????????????????20???????50??????????60?,????????????????????,????????“??????????????????????”??????????

1977??,?,???????“?”????????(???????????????)?????????????????????,??,??70%?

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?????????????????????,??????,??????????????????3????????????5?????????????????,???;?,8??????????10?????“??????????,????”

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