单项选择题
A.3mm B.5mm C.10mm D.40mm
A.1/150 B.1/300 C.1/400 D.1/1000
A.500；40 B.500；35 C.800；40 D.800；35
A.0.2 B.0.3 C.0.4 D.0.5
微信扫一扫,加关注免费搜题
