?????????? ????????????
1??22??????,?,?????,1?????????????23???????27?????,???,??????????????????????????????????,?????????????????????????????????????????????????????3?8cm,???????????????????12cm??????,????????????,??????,???,????????????,???????8?12?,??????????????????14?????????,?????4?????????6????????,??????????????????????????7?9?????1????26??27?????????????,????6?????????????8??
?,????????,?,????????????,?????????????,????,???(?)
???????:???
??
???:????