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When the dock is refilled with water after docking repair, the first work which should be done by engineers is （）

单选题
2022-01-03 03:12
A、igniting boiler
B、releasing air in sea water system
C、starting generator
D、cut off shore power
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正确答案
B
试题解析
标签： 船舶电气与船舶安全
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