1,4,12,32,80,( ),448

Freeti2019-12-17  3

问题 1,4,12,32,80,( ),448

选项 A.162B.182C.192D.212

答案C

解析4=1×2+2,12=4×2+4,32=12×2+8,80=32×2+16,( )=80×2+32=192,192×2+64=448。
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