【单选题】The single sentence that summarizes a speaker’s central message in a presentation is called the _________ statement.
【判断题】企业价值最大化与增加股东财富具有相同的意义
【判断题】The main idea is the central theme or the most important thought of a message.
【单选题】某元素阳离子(X + )的质量数为23,原子核内有12个中子,该阳离子的核外电子数为( )
【判断题】The main idea is the central theme or the most important thought of a message.