【判断题】
贝他系数反映个别股票相对于平均风险股票的变动程度的指标。它可以衡量出个别股票的公司特有风险，而不是市场风险
A. 对
B. 错
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答案
B
解析
暂无解析
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【判断题】
计算股票价值的贴现率应当是投资者要求的收益率。可根据股票历史上长期的平均收益率来确定；也可以参照债券的收益率，加上一定的风险报 酬率来确定。更常见的方法是直接使用市场利率
A. 对
B. 错
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施工起重机械和整体提升脚手架，模板等自升式架设设施安装完毕后
A. 安装单位应该自检
B. 安装单位应出具自检合格证明
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试验接线如图1—3，合上开关S，电压表、电流表、功率表均有读数，打开SI寸电压表读数不变，但电流表和功率表的读数都增加了，由此可判负载是___。
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