单项选择题
A.430g/m B.582g/m C.775g/m D.1101g/m
A.180×25(mm) B.(250~320)×50(mm) C.150×25(mm) D.100×50(mm)
A.2mm B.3mm C.4mm D.5mm
A.0.1mm B.0.15mm C.0.2mm D.0.25mm
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