[多选] 以下关于投资的定义的理解正确的有（）。

机关事业单位工作人员病假期间生活待遇有什么具体规定？ Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE?（）. CSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedence。 The CSS must be established by mutual agreement between the ships concerned。 A tanker should never be assigned CSS duties unless only tankers are present。 The first vessel to arrive at the distress incident is designated as the CSS。 复制的身份证件由于内容属实，可以使用。 享受探亲假的具体规定是什么？ 在大纲窗口中不可以进行（）。 对文字进行修改。 调整图片大小。 调整标题层次。 折叠和展开该幻灯片正文内容。 以下关于投资的定义的理解正确的有（）。