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

2??????????

3???sn??

4??????????

5???????

????10?????????10????? (???? ???)???????????????????????????????????……????“????????????”??,?????????“??”?

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

“?????,??????????????”??

??????????,????70??????1.5?????????????10??????,????“?????5??”????????????????????????,????????????;?????100??,??“?”??????«????????????»«???»«?????»?????

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

???????,??????,??,??,????????????????;????????????,????;????«????»«?????»«??»?????,??????,???;???????????“???”??????????

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

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

????????,??????,?????????????10???????8???????????;????5???6????????????6?????????????????????????????????????????????????????7????????????????“??????????”????,?????????????????

?????????????????,????,?10??????????13???????????????(?????????)

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