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2,3,4,(),94,227。A. 11 B. 27 C. 39 D. 82
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1 2 3 4 () 9 8 12 18 27 A.6 B.7 C.10 D.11
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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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4,2/3,20/27,7/16,36/125,() A.39/144 B.11/54 C.68/169 D.7
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94,39,16,7,()A.1 B.2 C.3 D.4
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157,65,27,11,5,() A.4 B.3 C.2 D.1
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157 65 27 11 5 ()。A.4 B.3 C.2 D.1