单项选择题 A power-driven vessel shall have her engine ready for（）when the visibility is restricted.

单项选择题 The Company should establish procedures in（）to identify equipment and technical systems the sudden operational failure of which may result in hazardous situations.

单项选择题 The company should establish procedures to ensure that（）related to safety and protection of the environment are given proper familiarization with their duties.Instructions which are essential to be provided prior to sailing should be identified,documented and given.