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【多选题】
资本资产定价模型是估计权益资本成本的一种方法。下列关于资本资产定价模型参数估计的说法中，正确的有（ ）。A.
估计无风险报酬率时，通常可以使用上市交易的政府长期债券的票面利率
B.
估计值时，使用较长年限数据计算出的结果比使用较短年限数据计算出的结果更可靠
C.
估计市场风险溢价时，使用较长年限数据计算出的结果比使用较短年限数据计算出的结果更可靠
D.
预测未来资本成本时，如果公司未来的业务将发生重大变化，则不能用企业自身的历史数据估计值
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举一反三
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visit
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visited
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had visited
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smiling; questioned
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smiled; questioning
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being smiled; questioned
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to smile; to question
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