单项选择题 Which of the following element(s) should be taken into account in the preparation of the “Cargo Securing Manual”? （）

单项选择题 Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel? （）

单项选择题 Which method is used to supply inert gas from a flue gas system to the cargo tanks?（）