23,4,20,6,17,8,14,10,11,12的规律
人气：345 ℃ 时间：2020-04-15 08:09:35
解答
第1,3,5,7,9.一组
第2,4,6,8...一组
第一组:23-3=30 20-3=17 17-3=14 公差3
第二组:4+2=6 6+2=8 8+2=10 公差2
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