3,4,12,18,44,( )

恬恬2019-12-17  10

问题 3,4,12,18,44,( )

选项 A. 44B. 56C. 78D. 79

答案C

解析解题指导:C。[img]/upload/tiku/260/2882528_1.jpg[/img]公比为2等比数列,答案选C
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