?? ??????????????!????“??”
????:1??????????????:??????
2?????????
3??????
4????????vx
5???????
?????????9?????19?????????????? (??????????? ???)??????????????“?????????????”(Sigma Geography),9???????????????????????19?????,“?”????,???????“??”,?????
???????????
?????????(???????????????????)?????????,“???”??????????????,????????????????????????????????,????????????????“??”?????????????????“?????”“??”“?????????????????”“????????????????”????,??????????????????????????????????????????????
9??19???,“???”??????????????“??????????????????????????”???? ????????? ????“??”??????????,“???????”?????????????,??4?????????????????16?????????????,??????????????????????320??,??4??????,“??????????”?????????????????,???31.3%?
“?????????????????????”?????,?????????,??“??”?????????,??????????,??????????????
“????”????????,????????????“?????????????????????????????”????????????????,?“??”????????????????????,?????????????????????????????
“????”????????,?“??”???????????,??????????????????????????????????????????????????????,???
????????????????
“?”??????????????,?????????????????????“??????????????????”???????????????????????,???“?????????”????????????,??,?????????????????????????????,??,???????????
9??19??????????????????,“????”?????????????????????? ?????????????? ????????????????,?????????????????“??”,?????????????????????????????????,??,??,?????????,?????????????
????,“?????????????????????”???????????,??,??????????????????????,??,???????????
??,“?”??,????????????????????????????,???,???????
????????????????????????????,“??”??????????????????????????????????????????????????????????????????????????????????,“????????????”?????????????????????
????????????
??????????“?”???????????????????????,???????????“???”????????“??”?????????????????????;“???”???????,???“??”,??,“??”??,???,?????????????
“??”?????????????????,???,????????????,????????????????????,“?????”????????«?????????????????????????????»????????????????«?»«?»???????????????10??????
??,???????,“????????”????,??;??,?????????????????,??????????????????????????????
?????????????,??????????????????????????“????????????”,?????“?????????”??????????????,????,?????????????,?????????????“????????????”??“??????????”“????????????????????”?????????????????????(??)
?????????:???