单项选择题
A.不大于3mm B.不大于4mm C.不大于5mm D.不大于6mm
A.不得超过25mm B.不得超过30mm C.不得超过35mm D.不得超过40mm
A.≤3mm B.≤5mm C.≤10mm D.≤15mm
A.815-890mm B.830-890mm C.835-890mm D.850-890mm
微信扫一扫,加关注免费搜题
