單項選擇題
A.22-30VB.21-35VC.15-30VD.20-30V
A.0.5B.3C.5D.6
A.0.2B.0.3C.0.4D.0.5
A.1B.2C.3D.4
A.1:5B.1:10C.1:20D.1:30
A.10.5V~22VB.10.5V~21VC.10.5V~20VD.10.5V~19V
A.10B.20C.30D.40
判斷題