四川省广安市2021年中考数学真题(原卷版)
广安市2021年初中学业水平考试试题数学一、选择题(每小题只有一个选项符合题意,请将所选选项填涂在答题卡相应位置上.本大题共10个小题,每小题3分,共30分)1.16的平方根是()A.B.4C.D.82.下列运算中,正确的是()A.B.C.D.3.到2021年6月3日,我国31个省(自治区、直辖市)和新疆生产建设兵团,累计接种新冠疫苗约7.05亿剂次,请将7.05亿用科学计数法表示()A.B.C.D.4.下列几何体的主视图既是轴对称图形又是中心对称图形的是()A.B.C.D.5.关于的一元二次方程有实数根,则的取值范围是()A.且B.C.且D.6.下列说法正确的是()A.为了了解全国中学生的心...
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