2,5,13,38,()
A.121
B.116
C.106
D.91
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2, 5, 13, 38, () A.121 B. 116 C. 106 D. 91
2, 5, 13, 38, () A、121 B、116 C、106 D、91
2,5,13,38,()A.121 B.116 C.106 D.91
1,2,5,14,75,()A.121B.324C.625 D.1056
5,13,38,()A.121 B.116 C.106 D.91
1,2,5,14,75,()A.121B.324C.625D.1056