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

??

????????2??????13???????? ????????13???????????????,????????,????,?????????????????????????6~8????????,?????10~12??????????????????,?????????????????????????????4~8?????,???10??

??,??,??????????????4~5??,????4~6?????????????????????????????????????6~7???

????,??14??15?,??????????????????????????????????????????????,??,??????????????????????;??????????????,?????????????????????????????,????

??,??????????,???;??,??,???

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

?????????

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

????????