（）is power supplied by main switchboard directly not through sub-board.<br>A:Deck machinery<br>B:Little power load<br>C:Some important load<br>D:stationary submersible pump

（）is power supplied by main switchboard directly not through sub-board.
A:Deck machinery
B:Little power load
C:Some important load
D:stationary submersible pump

出自：海船船员证

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