1 2 3 6 12 ( )A.20 B.24 C.18 D.36

热心网友

1 2 3 6 12 ( )A.20 B.24 C.18 D.36 1+2=31+2+3=61+2+3+6=121+2+3+6+12=24 ,选 B

热心网友

D.36

热心网友

B