单项选择题
A. Don’t shift the guy as you like. B. Don’t shift the stay as you like. C. Don’t move the derrick as you like. D. Don’t move the crane as you like.
请调高一下吊杆。（）A. Lower the derrick, please.B. Top the derri...
单项选择题请调高一下吊杆。（）
A. Lower the derrick, please. B. Top the derrick, please. C. Swing the derrick, please. D. Adjust the derrick, please.
吊杆停用时，稳索必须要收起来。（）A. When the derrick is stopped, the gu...
单项选择题吊杆停用时，稳索必须要收起来。（）
A. When the derrick is stopped, the guy must be stowed. B. When the derrick is stopped, the guy must be topped. C. When the derrick is stopped, the guy must be lowered. D. When the guy is stopped, the derrick must be stowed.
作为一名值班水手，你必须懂得如何调整吊杆。（）A. As an officer on duty, you mu...
单项选择题作为一名值班水手，你必须懂得如何调整吊杆。（）
A. As an officer on duty, you must know how to adjust derricks. B. As a sailor on duty, you must know how to adjust derricks. C. As a sailor on duty, you must know how to operate cranes. D. As an officer on duty, you must know how to operate cranes.
