单选题The most common type of AC service generator found aboard ship is the stationary （）.Aelectromagnetic field, revolving armature typeBelectromagnetic field, oscillatory armature typeCarmature, oscillatory electromagnet field typeDarmature, rotating electromagnetic field type
单选题
The most common type of AC service generator found aboard ship is the stationary （）.
A
electromagnetic field, revolving armature type
B
electromagnetic field, oscillatory armature type
C
armature, oscillatory electromagnet field type
D
armature, rotating electromagnetic field type
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