主磁极上有两个励磁线圈,一个与电枢电路并联,另一个与电枢电路串联的直流电动机属于()

题型:单项选择题

问题:

主磁极上有两个励磁线圈,一个与电枢电路并联,另一个与电枢电路串联的直流电动机属于()。

A、他励直流的直流电动机

B、并励直流电动机

C、串励直流电动机

D、复励直流电动机

考点:信号工考试信号工技师信号工技师题库
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第(9)空应选择()

A.honest

B.happy

C.careful

D.angry

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A.县级以上人民政府环境保护主管部门

B.县级以上人民政府

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A、0.001

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C、0.0002

D、0.01

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D.炙甘草汤

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