【简答题】A.They were protected by a strong US Navy. B.They were supported by a well-developed railroad. C.Most crew members had experience on foreign ships. D.As part owners of the ships, captains got some of ...
【简答题】A.They were protected by a strong United States Navy. B.They were supported by a well-developed railroad. C.Most crew members had experience on foreign ships. D.As part owners of the ships, captains g...