第6题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard{{/B}} A. No one knows how Mary gets to work. B. She doesn’t think the record player works. C. She throws the old record away. D. It’s surprising that Mary could repair the record player. 参考答案:D 答案解析:[听力原文]
M: I was surprised to see Mary using that record player you were going to throw away.
W: Ye
第15题: [单项选择]对风险事故发生概率和风险事故发生后可能造成损失的严重程度进行定量分析和预测的指标不包括( )。 A. 方差 B. 标准差 C. 残差 D. 风险价值模型 参考答案:C 答案解析:[解析] 风险测量的常用指标是产品收益率的方差、标准差、VaR。VaR方法(Value at Risk)，称为风险价值模型，也称受险价值方法、在险价值方法。其含义指，在市场正常波动下，某一金融资产或证
