问题
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4, 13, 22, 31, 45, 54, () A. 60,68 B. 61,70 C. 55,61 D. 72,80
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4, 13, 22, 31, 45, 54, () A. 60,68 B. 61,70 C. 55,61 D. 72,80
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13, 23, 31, 44, 55, ()。A.68 B.62 C.71 D.43
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13, 23, 31, 44, 55, ()A.68 B.62 C.71 D.43
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13,23,31,44,55,()。A.68 B.62 C.71 D.43
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4 5 13 23 49 ( )。A. 62 B. 84 C. 95 D. 99