问题
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3,4,6,9,(), 18A.11 B.12C.13D.14
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11,12,12,18,13,28,(),42,15,()A.15,55 B.14,60 C.14,55 D.15,60
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11,12,12,18,13,28,(),42,15,() A.15,55 B.14,60 C.14,55 D.15,60
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3,8,6,11,9,14,(),()。 A.11,16 B.12,17 C.13,17 D.14,18
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11,12,12,18,13,28,(),42,15,() A.15,55 B.14,60 C.14,55 D.15,60
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11, 12, 12, 18, 13, 28, (), 42, 15, ()A.15 55 B.14 60 C.14 55 D.15 60