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将1～12这12个数字填入下面的圆圈内(1和9已填好),使每个小正方形的4个角上的数字之和均为25。(答案在本期找)
Fill these 12 numbers from 1 to 12 in the lower circle (1 and 9 are already filled in) so that the sum of the numbers on the 4 corners of each small square is 25. (Answer in this issue)