At least one American citizen was shot dead and another injured by Cuban officials intercepting a speedboat off its coast on Wednesday, a US official has said.
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建造中的船舶抵押权，船舶已经登记的，适用登记国法律；未经登记，适用船舶建造地法律。，推荐阅读新收录的资料获取更多信息
“请分析上述代码的执行流程，输出一段标准的 Mermaid sequenceDiagram 代码。不要解释，只输出代码块。”