23,1,-5,5,31,( )A.-11 B.47 C.73 D.83

作者: tihaiku 人气: - 评论: 0
问题 23,1,-5,5,31,( )
选项 A.-11 B.47 C.73 D.83
答案 C
解析 多级数列。两两做差,得:-22,-6,10,26,构成一个公差为16的二级等差数列。C项当选。

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