在每个主体包中，创建与主体有关的期望。
Within each subject package, create expectations pertaining to the subject.
与主体有关的两个重要概念是：密钥和票据。
Two important concepts pertaining to a principal are keys and tickets.
结果表明，当估计的事件与主体有关时，被试对消极事件概率估计较低，对积极事件概率估计值；
The results showed:(1) The probability estimation was significantly lower for passive events than active events when the events in the tasks were related to the subjects;
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