(2015、2016年真题)Marine bill of lading is most important document in marine cargo transportation which can be divided into several different types according to different circumstances.46 refer to bills of lading made out the order of shipper or to order and can be transferred by 47. When the goods have been taken over by the carrier or have been loaded on board, the 48 shall issue B/L showing the particulars of the shipment. In practice, usually a set of 49 original bills of lading will be issued. When one of the original bills of lading has been surrendered to the carrier, the others became 50.