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【单选题】
能将不同预测对象的预测误差上限用一个相同的数值表示出来的是(    )。
A.
平均误差    
B.
平均绝对百分误差
C.
均方误差    
D.
标准误差
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A.
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B.
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D.
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B.
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相关题目：
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