39,62,91,126,149,178,( )

tikufree2019-12-17  5

问题 39,62,91,126,149,178,( )

选项 A. 205B. 213C. 221D. 226

答案B

解析二级等差数列,相邻两项的差为23,29,35,23,29,(35)。故答案为B。
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