A.(潜孔式+5.0,-3.0)(露顶式+5.0,-3.0)B.(潜孔式+5.0,-4.0)(露顶式+5.0,-4.0)C.(潜孔式+4.0,-3.0)(露顶式+4.0,-3.0)D.(潜孔式+4.0,-3.0)(露顶式+5.0,-3.0)
A.±2.0B.±1.5C.±1.0D.±0.5
A.1B.1.5C.2D.3