A ground can be defined as an electrical connection between the wiring of a motor and its（）.<br>A:shunt field<br>B:circuit breaker<br>C:metal framework<br>D:inter-pole

A ground can be defined as an electrical connection between the wiring of a motor and its（）.
A:shunt field
B:circuit breaker
C:metal framework
D:inter-pole

出自：海船船员证

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