A circuit breaker differs from a fuse in that a circuit breaker （）.<br>A:melts and must be replaced<br>B:is enclosed in a tube of insulating material with metal ferrules at each end<br>C:gives no visual indication of having opened the circuit<br>D:trips to break the circuit and may be reset

A circuit breaker differs from a fuse in that a circuit breaker （）.
A:melts and must be replaced
B:is enclosed in a tube of insulating material with metal ferrules at each end
C:gives no visual indication of having opened the circuit
D:trips to break the circuit and may be reset

出自：海船船员证

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