精品解析:2022年湖南省怀化市中考数学真题(原卷版)
2022年湖南省怀化市中考数学真题一、选择题1.的相反数是( )A.B.2C.D.2.代数式x,,,x2﹣,,中,属于分式的有( )A.2个B.3个C.4个D.5个3.2022年3月11日,新华社发文总结2021年中国取得的科技成就,其中包括“奋斗者”号载人潜水器最深下潜至10909米.其中数据10909用科学记数法表示为()A.B.C.D.4.下列说法正确的是( )A.相等的角是对顶角B.对角线相等的四边形是矩形C.三角形的外心是它的三条角平分线的交点D.线段垂直平分线上的点到线段两端的距离相等5.下列计算正确的是()A.B.C.D.6.下列一元二次方程有实数解的是( )A.2x2﹣...
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