问题
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4/17,7/13, 10/9, () A.13/6;B.13/5;C.14/5;D.7/3;
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3,3,4,5,7,7,11,9,()A.13,11 B.16,12 C.18,11 D.17,13
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3,3,4,5,7,7,11,9,() A.13,11 B.16,12 C.18,11 D.17,13
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3,3,4,5,7,7,11,9,(),()A.13.11 B.16,12C.18,11D.17,13
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3,3,4,5,7,7,11,9,()A.13 B.16C.18D.17
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3,3,4,5,7,7,11,9,(),()A.13, 11B.16,12C.18,11D.17,13