单项选择题
A.0.5% B.1.0% C.1.5% D.2.0%
A.6 B.7 C.8 D.9
A.额定电流 B.额定电压 C.总损耗 D.负载损耗下电流
A.50K B.55K C.60K D.65K
A.油浸,自然循环,热对流 B.水冷,自然循环,热对流 C.油浸,强迫循环,热对流 D.水冷,强迫循环,热对流
A.1/2和1/3 B.1/3和1/4 C.1/3和2/3 D.1/3和1/2
A.1/2 B.1/3 C.2/3 D.1/4
A.1 B.1.5 C.2 D.2.5
A.0.1 B.0.2 C.0.3 D.2