问题
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:1/3, 1, 1, 13/17, 17/33, () A.21/34 B.21/65 C.17/53 D.1
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1/3, 1, 1, 13/17, 17/33,() A.21/34 B.21/65 C.17/53 D.1
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1997年铁山港区的工农业总产值为多少亿元?()。A.12.64 B.14.43 C.13.59 D.13.26
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1997年铁山港区的工农业总产值为多少亿元?()。A.12.64 B.14.43 C.13.59 D.13.26
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13,33,26,64,()A.75B.52 C.65D.77
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13,33,26,64,()A.75B.52C.65D.77