问题
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:4,2/3,20/27,7/16,36/125,() A.39/144B.11/54C.68/169D.7
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4, 3/2, 20/27, 7/16, 36/125, () A.39/144 B.11/54 C.68/196 D.7
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-27,-64,-125,()。 A.-144 B.-169 C.-196 D.-216
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4,2/3,20/27,7/16,36/125,() A.39/144 B.11/54 C.68/169 D.7
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1,1,9,27,25,()。A.21 B.100 C.125 D.144
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4 27 16 25 36 23 64 21 ()A.81 B.100 C.121 D.144