当把单个元素信息相加时能提高绩效的信息也就随之丢失了，即使使用某种权重系统(weighting system)根据元素重要性赋予不同权值，也往往会把注意力放在最后的总分上而不去关注那些对提高某个元素的表现有关的信息上。
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哈佛大学肯尼迪学院对芝加哥学校系统进行的一项研究发现，考试的权重越高，作弊的可能性越大。
A study of the Chicago school system conducted for Harvard's Kennedy school found that the more weight given to tests, the more likely alteration becomes.
如上面所述，用例的权重是由它所包含的用例事务的数量所决定的，但是，什么时候系统对刺激源的反应会计算成不同的？
As stated above, the weight of a use case is determined by the number of different use case transactions it contains. But exactly when does the system's reaction to a stimulus count as different?
萨博拉曼尼亚：购买力平价是个重要的概念，不过在我对经济实力的整套评估系统中所占权重很小。
PPP is an important concept, but it has a small weight in my overall formula of economic power.
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