现代终身教育思想的提出者是法国成人教育专家保罗•朗格郎。
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应用于空冷凝汽器的风机有三种驱动方式,即单速、双速及()。
Rule 14 describes the action to be taken by vessel meeting head-on. Which of the following conditions must exist in order for this rule to apply?().
A. Both vessels must be power-driven
B. They must be meeting on reciprocal or nearly reciprocal courses
C. The situation must involve risk of collision
D. All of the above
贮备系统一般由()之分。
A. 热贮备
B. 冷贮备
C. 温贮备
D. 常贮备
线路雷电告警信息,包括()。
A. 线路名称
B. 线路雷击风险等级
C. 雷击发生地点
D. 雷击发生时间