单项选择题
A.±1.0mm B.±0.8mm C.±0.3mm D.±0.5mm
A.±10mm B.±0.8mm C.±0.3mm D.±0.5mm
A.5mm B.10mm C.20mm D.30mm
A.全部范围 B.5mm C.10mm D.20mm
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