單項選擇題
A.0.5mm B.1mm C.1.5mm D.2mm
A.2mm B.4mm C.5mm D.6mm
A.50 B.100 C.150 D.200
A.工地要求 B.機主要求 C.國際要求 D.說明書要求
A.4Ω B.10Ω C.0.5MΩ D.1MΩ
A.10%B.20%C.25%D.30%
A.0.5m B.0.6m C.1.5m D.2m
A.0.1m B.0.5m C.0.6m D.0.8m
A.1m B.1.5m C.2m D.4m
A.1.5m B.2m C.3m D.4m