题目内容：
根据以下资料回答题A large number of documents are used in the modern international trade such as marine bills oflading, letter of credit, insurance policy, commercial invoice, packing list, air waybill etC．The (46) is a document of title, the holder of which can get the goods at the port of destination from thecartier. (47) is the most common method of making international payments. The (48) mainly functions as receipt of the goods for dispatch, evidence of the contract of carriage between the carrier and the consignor in air transportation.(49) is an evidence of insurance contract issued by the insurer to the assured in which stipulating each party' s rights and responsibilities.(50) is a document issued by the authorized body in the exporter' s country stating the country of origin of the goods.
A．sea waybill B．ocean bill of lading
C．air waybill
D．invoice
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