2016年湖北省黄冈市中考数学试卷
2016年湖北省黄冈市中考数学试卷一、选择题:本题共6小题,每小题3分,共18分.每小题给出的4个选项中,有且只有一个答案是正确的.1.(3分)﹣2的相反数是( )A.2B.﹣2C.D.2.(3分)下列运算结果正确的是( )A.a2+a3=a5B.a2•a3=a6C.a3÷a2=aD.(a2)3=a53.(3分)如图,直线a∥b,∠1=55°,则∠2=( )A.35°B.45°C.55°D.65°4.(3分)若方程3x2﹣4x﹣4=0的两个实数根分别为x1,x2,则x1+x2=( )A.﹣4B.3C.D.5.(3分)如图,是由四个大小相同的小正方体拼成的几何体,则这个几何体的左视图是(...
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