单项选择题 To ensure the safe operation of each ship and to provide a link between the Company and those on board, every Company, as appropriate, should designate a person or persons ashore having direct （） to the highest level of management.

单项选择题 he Port Authorities, in accordance with the IMO resolutions have been carrying out （） to enhance safety of ships.

单项选择题 Engine room fires have been started by neglected oil leaks dripping on to hot pipes or exhaust manifolds （） insulation has not been replaced after maintenance.