以下为句子列表：
英文: Then, we set up the concept of the ideal expected profit value, proved the ideal expected profit value is a constant in any risk decision problem, and set up the relationship between expected profit and expected loss value on the basis of above the concep
中文: 其次给出了理想期望收益值的概念，证明了一个风险决策问题的理想期望收益值是一个定数，并在以上概念和结论的基础上给出了期望收益值与期望损失值的关系。
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