单选:自耦变压器一次侧电压与一次电流的乘积,称为自耦变压器的()容量。A.额定;B.标准;C.通过;D.有效。

题目内容:
自耦变压器一次侧电压与一次电流的乘积,称为自耦变压器的()容量。
A.额定;
B.标准;
C.通过;
D.有效。
参考答案:

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