问题
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3/2,5/8,7/24,9/48,()A.11/96B.11/48C.9/64D.9/81
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3 8 17 32 57 () A.96 B. 100 C. 108 D. 115
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1/4,2/7,2/5,8/13,1() A.9/16 B.3 C.32/19 D.28/17
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3/2,5/8,7/24,9/48,() A.11/96B.11/48C.9/64D.9/81
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3,8,17,32,57,()。 A.96B.100C.108D.115
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1/3,2/5,4/9,(),16/23,32/33A.6/13B.8/15C.10/17D.12/19