A.小于2mm B.大于2mm C.小于4mm D.大于4mm
A.松動(dòng) B.轉(zhuǎn)動(dòng) C.卡阻 D.震顫
A.1.2±0.2mm B.1.3±0.3mm C.1.4±0.4mm D.1.5±0.5mm