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1,1,2,6,24,() A,25;B,27;C,120;D,125
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1 1 2 6 24() A.11 B.50 C.80 D.120
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1,-2,6,-24,() A.72 B.96 C.120 D.-120
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1,2,6,24,120,() A.720B.600C.480 D.240
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1,1,2,6,24,120, ()。A.620B.720C.820D.680
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1,1,2,6,24,120, ()。A.620B.720C.820D.680
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1 1 2 6 24 ()。A.48 B.96 C.120 D.122