单项选择题
A.100 B.90 C.80 D.70
A.0.01mm B.0.5mm C.0.2mm D.1mm
A.0.95,1.00 B.0.90,1.00 C.0.95,1.05 D.0.90,1.05
A.钢板尺B.游标卡尺C.卷尺D.游标量角器
微信扫一扫,加关注免费搜题