---

Which of the following precautions should always be carried out in dry dock?（）
A:Liquids should never be transferred between tanks without consulting the dock master
B:If sea valves have been disassembled, all bonnets must be checked for leakage when the ship is re-floated
C:Before re-floating, all sea chest strainers should be verified as having been replaced
D:All of the above

---

出自：海船船员证

显示答案