a1+b1=c1
a2+b2+c1=c2
a3+b3+c2 =c3
a4+b4+c3 =c4
.... ...
•
草鞋妹子的答案更像是科學家的答案!
-我愛丁二酸鈉-
♂
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12/15/2024 postreply
08:30:37
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