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6,7,3,0,3,3,6,9,5,()A. 4 B. 3 C. 2 D. 1
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84,64,47,33,(),14A. 12 B. 14 C. 22 D. 24
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7 , 10 , 16 , 22 ,()A. 28 B. 32 C. 34 D. 45
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直线2x-y+4=0与x轴的哪一点相交?()A. 4 B. 2 C. 0 D. -2
2015-01-22
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计算1991×199219921992-1992×199119911991的值是()。
2015-01-22
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