22 ,24 ,27 ,32 ,39 ,( )A.40 B.42 C.50 D.52

作者: tihaiku 人气: - 评论: 0
问题 22 ,24 ,27 ,32 ,39 ,( )
选项 A.40 B.42 C.50 D.52
答案 C
解析 解析:本题初看不知是何规律,可试用减法,后一个数减去前一个数后得出:24-22=2,27-24=3,32-27=5,39-32=7,它们的差就成了一个质数数列,依此规律,( )内之数应为 11+39=50。故本题正确答案为 C。

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