1. [单选题]机舱的前后端均设( )。
A. 普通舱壁
B. 纵舱壁
C. 水密横舱壁
D. 油密横舱壁
2. [单选题]When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?
A. The propeller hub taper and shaft keyway should be inspected for cracks or corrosion
B. The stern bearing alignment with the stern frame should be checked
C. The interior of the stern tube should be inspected for leaks
D. The shaft liner should be removed and inspected for cracks
3. [单选题]按照骨折复位后______来分有稳定性骨折和不稳定性骨折。
A. 与外界相通
B. 与外界不相通
C. 稳定程度
D. 不稳定程度
