九年级数学4月模拟试题VIP免费

ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus on training junior high school, junior high school secretary of the regiment branch to enable them to raise A firm political conviction, diligent and diligent learning spirit and practical and innovative work style.江苏省无锡市惠山区 2024 届九年级数学 4 月模拟试题一、选择题（本大题共 10 小题，每小题 3 分，共 30 分．在每小题所给出的四个选项中，只有一项是正确的，请用 2B 铅笔把答题卡上相应的选项标号涂黑）1．－2 的倒数是（ ）A．－ B．C．±2D．22．函数 y＝中自变量 x 的取值范围是（ ）A．x＞2 B．x≥2C．x≤2D．x≠23．sin45°的值是（ ）A． B． C． D．14．下列地方银行的标志中，既不是轴对称图形，也不是中心对称图形的是（ ）5．已知某圆锥的底面半径为 3 cm，母线长 5 cm，则它的侧面展开图的面积为（ ）A．30 cm B．15 cm C．30π cm D．15π cm6．六多边形的内角和为（ ）A．180°B．360° C．720° D．1080°7．已知，AB 是⊙O 的弦，且 OA＝AB，则∠AOB 的度数为（ ）A．30°B．45° C．60° D．90°8．某区新老师招聘中，七位评委独立给出分数，得到一列数．若去掉一个最高分和一个最低分，得到一列新数，那么这两列数的相关统计量中，一定相等的是（ ）A．中位数B．众数 C．方差D．平均数9．在△ABC 中，AC＝4，AB＝5，则△ABC 面积的最大值为（ ）A．6B．10 C．12D．2010．直线 l：y＝mx－m＋1(m 为常数，且 m≠0)与坐标轴交于 A、B 两点，若△AOB（O 是原点）的面Strengthen the team connection, strengthen the knowledge education among the students (especially the first grade students), and promote the formation of good school spirit with the influence of the league members. All League branches should start with recommending outstanding students as the devel...