单项选择题
A.A1修 B.A2修 C.A3修 D.A4修
A.(250±6)mm B.(259±6)mm C.(260±6)mm D.(269±6)mm
A.190mm B.195mm C.196mm D.200mm
A.200mm B.258mm C.300mm D.358mm
微信扫一扫,加关注免费搜题