题目:
Floors aboard ship are().
A.frames to which the tank top and bottom shell are fastened on a double bottomed ship
B.transverse members of the ships frame which support the decks
C.longitudinal beams in the extreme bottom of a ship from which the ships ribs start
D.longitudinal angle bars fastened to a surface for strength
答案:
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参考答案:对解析:公司债券是公司依照法定程序发行的、约定在一定期限还本付息的有价证券。公司债券是债券体系中的重要品种,它反映发行债券的公司和债券投资者之间的债权债务关系。