?? ?“????”???6?11????? ??20?
????:1?????:??????
2???????
3?????
4???gm????
5???????
??????9????15??? (??????????? ???????????)?15?????,?????“?????????”????????6??????????????11?????,??2???,??20??????????
???,“???????????????”??13???18?,???????14???????????2??????????????????,“?????????????”???,??????????????“?”??,??,???????
??,????????????????15???,“???”???????3.6??,?????????1.4?????,????6???????????????,?4????“????????”??,2???????????????????????????????
????,??,????(????) ?????????????:???