问题
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1, 2, 3, 6, 7, 14, () A.30 B.25 C.20 D.15
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1,3/2,11/6,25/12,()。 A.133/60 B.137/60 C.141/60 D.147/60
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1, 2, 3, 6, 7, 14, () A.30 B.25 C.20 D.15
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1,3,2,4,2,7,4,11,(),()。A.6,19 B.8,18 C.10,20 D.16,22
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1.2,1.3, 2.6, 6.11,24.18,()A. 25.20B. 120.27C. 32.30D. 36.27
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表达式(3/2+1)*(5/2+2)的值是:() A.11.25B.3C.6.125D.4