请问一下committee的前三个说的independent说的都是non-excutive的吗？

BEY是什么意思？

如图这个例子中，不理解这种情境，关于这个电脑公司将要有保留的审计意见，她开始并没有注意，后来当她看到一个新客户的账户中有大量持有该电脑公司的股票她才开始重视起来，不明白为什么新客户的账户中大量持有该公司股票她就开始关注？

解析答案是负数有误吧，网页答案是正数与算出的结果一致

30.单选题 收藏 标记 纠错 Nightmare Consulting is a financial consulting company who mainly serves high net worth customers. Kate Blaine, a high level manager of a public listed corporation, would like to invest a substantial portion of her money to real estate market. Consultant from Nightmare made some viewpoints for her: Real estate investment is not a good source of inflation hedge. Real estate investment may have longer period to generate return. Return of real estate investments only generate from assets appreciation. Which of the statements is most likely correct? A I, II B II, III C II 老师，解析下这道题，播放视频里的声音不稳定，时好时坏，听不清楚

risk arbitrage trading 风险套利交易？套利不是无风险吗？

为什么存货减值 COGS会上升

老师，对永续债求modified duration＝得塔p／得塔r，为什么又等于求pv＝c/r的一阶导，那不就相当于modified duration＝pv了吗？

write-down会降低inventory可以理解，但COGS为啥会提高？不明白

为何计算FIFO与LIFO的转换，要与Inventory与COGS有关？