-2,1,31,70,112,()[农行真题] A.154 B.155 C

恬恬2019-12-17  11

问题 -2,1,31,70,112,()[农行真题]A.154B.155C.256D.280

选项

答案B

解析三级等差数列变式。[img]/upload/tiku/143/1702577_1.jpg[/img]
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