阿摩線上測驗
21. The _______________ is often used to control the power output provided by the prime mover of generator.
(A) governor
(B) circuit breaker
(C) main switch board
(D) motor
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統計： A(178), B(45), C(89), D(37), E(0) #3407849
統計： A(178), B(45), C(89), D(37), E(0) #3407849
