2012年湖南省郴州市中考数学试卷(含解析版)
2012年湖南省郴州市中考数学试卷一、选择题(共8小题,每小题3分,满分24分)1.(3分)﹣3的相反数是( )A.3B.﹣3C.D.﹣2.(3分)下列计算正确的是( )A.a2•a3=a6B.a+a=a2C.(a2)3=a6D.a8÷a2=a43.(3分)以下列各组线段为边,能组成三角形的是( )A.1cm,2cm,4cmB.4cm,6cm,8cmC.5cm,6cm,12cmD.2cm,3cm,5cm4.(3分)如图是由5个相同的小正方体组成的立体图形,它的俯视图是( )A.B.C.D.5.(3分)函数y=中自变量x的取值范围是( )A.x=2B.x≠2C.x>2D.x<26.(3...
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