题目内容
同步发电机负载时V型曲线最低点的纵坐标指（ ）。
2025-06-27
A.只带有功功率时的电枢电流
B.只带无功功率时的电枢电流
C.既带有功又带无功时的电枢电流
D.既无有功也无无功电流
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