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找出规律,在括号里填数。23,4,20,6,17,8,( ),( ),11,12。
200525找出规律,在括号里填数。23,4,20,6,17,8,( ),( ),11,12
激发孩子创新思维，小学生作业辅导，博士生都收藏。124/267
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