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:中档

    (2017•山东) 孔与轴的尺寸分别为Φ35M8()和Φ35f7(),它们在加工时允许尺寸的变动范围是(      )
    A. 0.029mm,0.075mm B. 0.039mm,0.075mm C. 0.039mm,0.025mm D. 0.029mm.0.025mrm