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.高考资源网（ www.ks5u.com），您身边的高考专家云南省大理州南涧县 2024-2024 学年高一数学下学期期中试题本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，共 150 分，考试用时 120 分钟。注:所有题目在答题卡上做答Ⅰ 卷一、选择题：（本大题共 12 小题，每小题 5 分，共 60 分.在每小题给出的四个选项中，只有一项是符合题目要求的.）1．已知集合 S={1，2}，设 S 的真子集有 m 个，则 m=（ ）A．4 B．3 C．2 D．12.函数的定义域为（ ）. . . .3．一个球的体积等于其表面积，那么这个球的半径为（ ）A．3 B．2 C．1 D． 4．已知，，则（ ）A． B． C． D．5．直线 l 过圆的圆心，且与直线垂直，则 l 的方程为（ ）A． B． C． D．6.若，且，则与的夹角是（ ）. . . . 7.使得函数有零点的一个区间是（ ）. . . .8．点 P 在直线上，O 为坐标原点，则的最小值是（ ）A． B． C． D．9．若某几何体的三视图（单位：cm）如图所示，则此几何体的体积是( )．A．18 B．12 C．9 D．24 10．在正四棱锥中，所有的棱长均为，则侧棱与底面所成的角和该四棱锥的体积分别为（ ）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 development objects of the League, take amateur league schools as the basis, conscientiou...
