（） is (are) not power supplied by main switchboard directly.<br>A:Steering gear and windlass<br>B:Navigation light and radio power panel<br>C:Navigation device power box<br>D:Daily fresh water pump

（） is (are) not power supplied by main switchboard directly.
A:Steering gear and windlass
B:Navigation light and radio power panel
C:Navigation device power box
D:Daily fresh water pump

出自：海船船员证

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