6??8???????? ??????????9~10?

????????2????????6? ????????????????????????,??????????(2??5?????????),?????????????????????????????????????????????????????????????????????????????????????????7~9??,????????10~13??????????????????,??????????????

6????????????????8??,??,????????

?????????????,?????6~8?,???????????10??;?????????????????4~6?,?7~8?,????10????8?????,??????????0???????????????,??????8~10?,????????????12????????

????,??????????,?????4~6????????7~8?????,??????,???????9~10??????;??????7~8???????????9~11?????6??????????

6??????7???,??,??????????????????????????????,6??????????7??????,??,?;??????????????

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