单项选择题
If a small electric motor is immersed in salt water it should be （） (1) washed in fresh water (2) dried in an oven
A.(1) only B.(2) only C.both (1) and (2) D.neither (1) or (2)
A.ampere B.kilovolt C.watt D.farad
A.wasted energy B.efficient operation C.a short in the exciter field windings D.an excessive number of minor system grounds