单选

D.Cgenerators are classified according to the manner in which .

A.they are used
B.the field windings are connected to the load
C.the armature circuit is connected to the load
D.the field windings are connected to the armature circuit

试题出自试卷《海船船员适任证书三管轮模拟试题4(轮机英语)》

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