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?12????????????21????????? ????,21???,???,?????????4~8?;????????????????????????2~4?????????????,?????,??????????,??????

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21??????????????????,?,???????4~8?;??????????????????????2~4???7~8?????9~10???????????

?12??21??08??:????????,12????????????21??08?????22??08????,?????????????????????????????????5~6?????????7~8????;??????????????????????7~8???????????9~10????,????9?????????????????10~11??

??(12?21?08?-22???????????????08?)

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

?,21???22???,??????;?????????????????????

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12????21????08???????22??08???????????????,??????????????????????????????????,?,?(3~9??)??????????????????????????????????????????????????????????????????????5~6?,????7~8?;?????????????????6~8???????,?????????9~10???

???????(12?21??????08????????????-22?08??)

12???????????????????22????08????????????????23?08?,?????????????????????????????????????????,????????,????(3~6?????)??????????????????????5~6??,?7~8??????;?6~8????,????????????9~10??

?(12??22?08?-23?????????????08????)

12?????????????23????08????????????24??????08???????????,??????????????????????????????????,????,?????????????????????????????4~6????,???7~8??????????;?6~8???????????,??????9~10???

?????????(12?23?08????????????-24????08????) ??????:??