A、keeping the terminals clean
B、coating cable connections with petroleum jelly
C、maintaining a trickle charge
D、All of the above
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A、keeping the terminals clean
B、coating cable connections with petroleum jelly
C、maintaining a trickle charge
D、All of the above
时间：2021-08-08 06:19 关键词： 船舶电气与船舶安全 水路交通运输技能考试 海船船员考试
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