單項選擇題
A.25Hz或80Hz B.25Hz或100Hz C.25Hz或160Hz D.25Hz或175Hz
A.1.2V B.1.4V C.1.6V D.1.8V
A.3.0A~4.0A B.3.5A~4.5A C.4.5A~5.5A D.5.5A~6.5A