?7?25??? ??,?24??,7??????????????25??20?????26????????20??????,??????????????????????????????????????????????????????????????????????????????????34??(???????????)???33?????????????(????????????)??,????????????????3???????????“?????????”??????,??,????«????»,?????????????????7??25?????????18????????????????????????????????

???????????????????????,??????????????????????????3?“???????????”???,??,?????????????????????????????????????????????,???????????,???,?????????????????,????????;?“??????????????????????????”???????????????“??????????????????????”????,????????,??,??,????????????????????,????????,?????????????2??????

????:????????? ??“??????????”????

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

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

2??????100???

3???????

4???????

5??????????

?7?25??? ??,?24??,7??????????????25??20?????26????????20??????,??????????????????????????????????????????????????????????????????????????????????34??(???????????)???33?????????????(????????????)??,????????????????3???????????“?????????”??????,??,????«????»,?????????????????7??25?????????18????????????????????????????????

???????????????????????,??????????????????????????3?“???????????”???,??,?????????????????????????????????????????????,???????????,???,?????????????????,????????;?“??????????????????????????”???????????????“??????????????????????”????,????????,??,??,????????????????????,????????,?????????????2??????

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