问题
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:6/28,21/98,18/84,9/42,()A.25/60 B.12/44 C.12/56 D.25/78
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33 、 5 , 6 , 16 , 28 , 60 ,()A 74 B 82 C 92 D 116
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5,6,16,28,60,() A 72 B 84 C 92 D 116
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6/28,21/98,18/84,9/42,() A.25/60 B.12/44 C.12/56 D.25/78
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.6/28,21/98,18/84,9/42,() A.12/56 B.12/44 C.25/60 D.25/78
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1.57, 5.14, 9.28, 16.56, ()。 A.25.12B.26.12C.30.84D.33.84