2015年浙江省湖州市中考数学试卷
2015年浙江省湖州市中考数学试卷一、选择题(共10小题,每小题3分,满分30分)1.(3分)﹣5的绝对值为( )A.﹣5B.5C.﹣D.2.(3分)当x=1时,代数式4﹣3x的值是( )A.1B.2C.3D.43.(3分)4的算术平方根是( )A.±2B.2C.﹣2D.4.(3分)若一个圆锥的侧面展开图是半径为18cm,圆心角为240°的扇形,则这个圆锥的底面半径长是( )A.6cmB.9cmC.12cmD.18cm5.(3分)已知一组数据的方差是3,则这组数据的标准差是( )A.9B.3C.D.6.(3分)如图,已知在△ABC中,CD是AB边上的高线,BE平分∠ABC,交CD于点...
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