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当前学科：船舶安全生产规章制度
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船舶开航前二副应做好哪些工作？（）I、对船舶缺陷的处理符合港口当局的要求；II、提前检测航海仪器和声光系统；III、将开航情况向船长报告
A . I、III
B . I、II
C . I、II、III
D . II、III
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