职教组卷基于海量职教高考试题库建立的在线组卷及学习系统
职教组卷
  • 题型:选择题 题类:期末考试 难易度:较易

    如图,已知正四棱柱\(ABCD-A_{1}B_{1}C_{1}D_{1}\)的底面边长为\(1\),侧棱长为\(2\),点\(P\),\(Q\)分别在半圆弧\(\hat{C}_{1}C\),\(\hat{A}_{1}A(\)均不含端点\()\)上,且\(C_{1}\),\(P\),\(Q\),\(C\)在球\(O\)上,则\((\quad)\)
    A. 当点\(Q\)在\(\hat{A}_{1}A\)的三等分点处,球\(O\)的表面积为\((11-3\sqrt{3})π\) B. 当点\(P\)在\(\hat{C}_{1}C\)的中点处,过\(C_{1}\),\(P\),\(Q\)三点的平面截正四棱柱所得的截面的形状都是四边形 C. 球\(O\)的表面积的取值范围为\((4π,8π)\) D. 当点\(P\)在\(\hat{C}_{1}C\)的中点处,三棱锥\(C_{1}-PQC\)的体积为定值
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