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4,13,22,31,45,54,(),() A.60, 68;B.55, 61; C.63
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4,8,14,23,36,()A.49 B.51 C.53 D.54
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4,8,14,23,36,()A.49 B.51 C.53 D.54
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4,8,14,23,36,() A.49 B.51 C.53 D.54
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8, 14, 22, 36, ()。A.54 B.56 C.58 D.60
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22 36 40 56 68 ()。 A.84 B.86 C.90 D.92
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4 13 22 31 45 54 () ()。A.60 68 B.61 70 C.55 61 D.