????:1??????????:??sn??

2???98???

3??????????

4????????

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

?????????????????9??????????????????????????2???? (??????)?????????????????????????????9?“????????????”“?????”????,???????????,?????“??????”“???”????????,?????????????,?????,?????????????????????????

??????????“???????????????????”“???????????”???????????? ???????????????????? ?????

??????2????“?????????????????”“??”??,?????«?????????“???????????”“??????”????????»«??????»????

8??25???????,?????«???????????????“???”“?????”????»,??????8??30????????????,??,???????????????????????????????????????????????????????

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

7???,????????????????«??»,???????????????????????????,??«???»,?????????????????????,???????????

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

??????1?????7????????????,????????5.6%,?2.1????????,????????61.7%?11.8%???????700??,???????500??????????????????????????5.1????10%,????36%?

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

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