A、Good navigational knowledge and a professional job attitude B、Good computer knowledge C、Good system knowledge D、Nothing special
A、Good navigational knowledge and a professional job attitude B、Good computer knowledge C、Good system knowledge D、Nothing special
A、increase the ship's officers' knowledge B、extend the ship's officers' knowledge C、improve the ship's cargo-handling equipment D、raise the working efficiency
A、placed in a position with the head lower than the body B、given an inhalation stimulant C、given something to drink D、treated for injuries until conscious