单项选择题
Even in the absence of express instructions，the authority of the master of a ship is very large and（）to all acts that are usual and necessary for the employment of the ship.
A.expends B.spreads C.extends D.enlarges
单项选择题 During an abandonment or drill，the first person to arrive at the survival craft should（）.
单项选择题 Do you know（）?
单项选择题 Compliance with the terms of the load line certificate on a vessel is the responsibility of the（）.
