单项选择题
A.划痕 B.痕迹 C.烧痕
A.160±5mm B.118±5mm C.75±5mm
A.8mm B.9mm C.10mm
A.4.0±1.5mm B.5.0±1.5mm C.6.0±1.5mm
微信扫一扫,加关注免费搜题