【单选题】
When turning the engine with turning gear, you should keep the indicator cocks （）.
A、attached to the indicators
B、opened
C、closed
D、broken
查看正确答案
A、A ship has to turn to stem the tide because the wind is strong when she is getting alongside a wharf. B、Sometimes the wind is strong and the current is rough, so a ship has to turn to stem the tide when she is getting alongside a wharf. C、The wind is big, a ship must get alongside a wharf so she has to turn to stem the tide. D、A ship has to turn to stem the tide so she can get alongside a wharf.
