问题
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1.11, 4.21, 16.31, 64.41, ()。A.16.51 B.33.51 C.81.62 D.256.51
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31,37,41,43,(),53。 A.51 B.45 C.49 D.47
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1,11,21,31,()。 A.39 B.41 C.51 D.49
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133/57,119/51,91/39,49/21,(),7/3 A.28/12B.21/14C.28/9D.31/15
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133/57,119/51,91/39,49/,21,(),7/3 A.28/12B.21/14C.28/9D.31/15
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11,4.21,16.31,64.41,()A.16.51B.33.51C.81.62D.256.51