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单选题
两台调差系数相同的同容量发电机组并联运行,可实现()。
A
功率分配均匀,且频率恒定
B
功率分配均匀,但频率随负载增加而降低
C
频率恒定,但功率分配不均
D
功率分配不均,且频率随负载增加而增加
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