杆坑坑深允许误差为(),坑底应平整。 A.+100mm,-50mmB.+100mm,-100mmC.+500mm,-100mmD.+100mm,-150mm
杆坑坑深允许误差为(),坑底应平整。
A.+100mm,-50mm
B.+100mm,-100mm
C.+500mm,-100mm
D.+100mm,-150mm
相关考题:
根据有关规范的规定,除满足设计杆坑坑深误差值的要求外,两坑相对高差不应大于20mm,当大于()时,应按最深一坑操平。 A.20~100mmB.20~150mmC.30~100mmD.30~120mm
杆坑坑深允许误差为(),坑底应平整A+100mm,-50mmB+100mm,-100mmC+500mm,-100mmD+l00mm,-150mm