Which of the following is true about the research objects of Underwater Archaeology? .
AUnderwater Archaeology studies human cultural relics in waters.[|]Its research objects are human cultural relics in the sea.[|]Underwater Archaeology studies only ship wrecks .[|]Everything in the sea can be the research objects of Underwater Archaeology
海上丝绸之路
章节列表
I. Ancient Maritime Trade Routes I15II. Ancient Maritime Trade Routes II16III. Exchanges on the Silk Road: Products and Technology12IV. Exchanges on the Silk Road: Religion15V. Exchange on the Silk Road: Arts13VI. Underwater Heritage along the Maritime Silk Roads15VII. Maritime Power Projection18VIII. The Belt and Road Initiative12IX. China Shipping Development Outlook 203015