单项选择题
A.45±0.2mm B.15±0.2mm C.60±0.2mm D.75±0.2mm
A.不合格先隔离及时通知班长、工艺品质 B.私自处理 C.直接报废 D.让步放行
A.492.5mm B.495.5mm C.496.5mm D.497.5mm
A.310.5mm B.311.5mm C.312.5mm D.313.5mm
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