-2 ,14, 6 ,10, 8, ( )。 A. 4 B. 7 C. 9 D. 10

作者: tihaiku 人气: - 评论: 0
问题 -2 ,14, 6 ,10, 8, ( )。 A. 4 B. 7 C. 9 D. 10
选项
答案 C
解析 二级数列中的差后等比数列。 所以16,-8,4,-2接下来的数字为1,而-2,14,6,10,8接下来的数字为8+1 = 9,故应选C。

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