老师您好，第30题为什么选A？从直线变到加速折旧不是一开始的D变大了么，CF=(S-C)*(1-t) + D*t，D变大，CF变大，NPV变大？

这里为什么计算绿色部分的value时用的是D0/（r-g），这里的g用的是4%而不是对应时间段内的真实折现率？

Reading43课后题Q26，这三个选项分别是在什么real estate的时候用到呢？Q27不太理解，这个appraisal lag是什么

Reading43Q24，为什么不用除去20年的depreciation? 在ppt里面第55-57页的例子有除去depreciation

capm模型里面不是re=rf+贝塔*（rm-rf）么，这里的rm是整个市场的收益，那为什么题中用equity risk premium 来代表这里的（rm-rf），也就是说rm-rf是整个市场的risk premium，而不是单个equity啊，谢谢老师

老师您好，请问第18题的CF1为什么不是原来的30 减去 190，CF2-10不是原来的30 再加上30？我这么理解是因为题目里说了是additional cash flow，所以我觉得应该在original project的CF的基础上加上因为扩张而多出来的CF。

老师您好，原版书习题reading 28的第15题求解释？是让调现在的还是调历史的？

利用三角套汇，计算profit， 就如图中最后算出1.000159USD, 那么这个就是他的profit吗？还是要减去1？

为什么呢。谢谢？

Q. Which changes to the board of directors is least consistent with best practices in the composition of a board? Specific choice of the new chairman of the board Change in the composition of the board membership Change regarding the CEO Solution A is correct. Based on best practices, the chairman of a board should not be a senior executive from the firm. B is correct because based on best practices, the board should have a majority independent directors. C is incorrect because based on best practices, the chairman of a board should not be a senior executive from the firm. Corporate Governance Learning Outcome Explain effective corporate governance practice as it relates to the board of directors and evaluate strengths and weaknesses of a company’s corporate governance practice 请老师解释一下这道题目，谢谢！