?????????? 27?????????

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

?????????9??????24?????? ???????,??,?????????????????????????????????????????,?????,????????????????????????????????????????????????????,???

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

9??????????,??,???????,???????????????????4-6?,??????6?????????????????27??,???,????????????????4~8??????,??????????????????????????????10~12?,???????14?,??????????????4~6?????,?????7~8????????????,????

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

???,27?????????????,??;????

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