题目内容

事件树分析方法的理论基础是决策论，它是一种从原因到结果的自上而下的分析方法。事件数分析是一种归纳逻辑树图，能够看到事故发生的动态发展过程，提供事故后果。按照事件树的分析步骤，判定安全功能后的下一步骤是( )。

A. 确定初始事件
B. 发展事件树和简化事件树
C. 分析事件树
D. 事件树的定量分析

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