The （）, cage rotor induction motor is the first choice marine motor in most modern ships because of its electrical and mechanical simplicity.<br>A:single phase<br>B:two phase<br>C:three phase<br>D:four phase

The （）, cage rotor induction motor is the first choice marine motor in most modern ships because of its electrical and mechanical simplicity.
A:single phase
B:two phase
C:three phase
D:four phase

出自：海船船员证

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