游標(biāo)卡尺讀數(shù)為下圖,則測(cè)量結(jié)果是()。
A.61.0mm B.61.2mm C.61.9mm D.61.6mm
A.0mm B.10mm C.20mm D.30mm
A.0.01mm B.0.02mm C.0.03mm D.0.04mm