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

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