问题
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0,1/3, 5/8,5/6,9/10,()A.5/6 B.8/9 C.13/14 D.21/20
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0, 1, 0, 5, 8, 17, () A.19 B.24 C.26 D.34
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0, 1, 0, 5, 8, 17, () A.19 B.24 C.26 D.34
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0.1+0.3+0.5+0.7+0.9+0.1 1+0.13+0.15+0.17+0.19+0.21+?+0.99一().A.13.25 B.22.55 C.27.25
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0,1/5,1/5,3/17,2/13() A.2/13B.19/7C.7/25D.5/37
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1,0,5,8,17,19,()A.21B.37C.102D.106