1,2,4,3,5,6,9,18,( ) A.14 B.24 C.27 D.36
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1,2,4,3,5,6,9,18,( ) A.14 B.24 C.27 D.36
1,2,4,3,5,6,9,18,( ) A.14 B.24 C.27 D.36
1,2,4,3,5,6,9,18,( ) A.14 B.24 C.27 D.36
1+4=5
2*3=6
4+5=9
3*6=18
5+9=14
所以答案是A(14)
看成2组
1 4 5 9 (14)
2 3 6 18