单选题舵机的替代动力源是指（）。A主机轴带发电机B应急电源C舵机室独立动力源DB或C
单选题
舵机的替代动力源是指（）。
A
主机轴带发电机
B
应急电源
C
舵机室独立动力源
D
B或C
参考解析
解析：
暂无解析
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