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【单选题】
采用指数平滑法进行预测时,选取的权数应该是( )A.
越是远期的资料，权数应该越大
B.
越是近期的资料，权数应该越小
C.
越是近期的资料，权数应该越大
D.
远期和近期的资料的权数应该相等
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