2,8,24,64,( )

Freeti2019-12-17  1

问题 2,8,24,64,( )

选项 A.160;B.512;C.124;D.164

答案A

解析选A,1×2=2;2×4=8;3×8=24;4×16=64;5×32=160,其中,1,2,3,4,5等差;2,4,8,16,32等比。
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