A.2mm B.2mm-1mm C.2mm±1mm D.2mm+1mm
A.0.52mm B.0.54mm C.0.56mm D.0.58mm
A.(2.85±0.14)×2Ω B.(2.85±0.14)/2Ω C.2.85±0.14Ω D.2.85Ω