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:历年真题 难易度:难

    (2020•山东)已知正方体\( ABCD-{A}_{1}{B}_{1}{C}_{1}{D}_{1}​\) (如图所示).则下列结论正确的是 (  )
    A. \( B{D}_{1}\parallel {A}_{1}A​\) B. \( B{D}_{1}\parallel {A}_{1}D​\) C. \( B{D}_{1}⊥ {A}_{1}C​\) D. \( B{D}_{1}⊥{A}_{1}{C}_{1}​\)