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.

单项选择题 The officer in charge of the engineering watch shall ensure that at all times bridge orders relating to changes in （） of operation are immediately implemented.