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

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