老师11题我没明白题目的要求，不会解答。 12题B清偿债务属于+负债呀，为什么是loss没懂？

他这个不是讲的是产品销售价格高吗？你怎么说的是成本高呢？

12 Which of the following statements about peer groups is most accurate? A Constructing a peer group for a company follows a standardized process. B Commercial industry classification systems often provide a starting point for constructing a peer group. C A peer group is generally composed of all the companies in the most narrowly defined category used by the commercial industry classification system. 为甚A、C不对

8 Which of the following is not a limitation of the cyclical/non- cyclical descriptive approach to classifying companies? A A cyclical company may have a growth component in it. B Business- cycle sensitivity is a discrete phenomenon rather than a continuous spectrum. C A global company can experience economic expansion in one part of the world while experiencing recession in another part. 为什么不选C呢，C不是周期性的限制啊？答案选B，但是解释是Business -cycle的敏感性是discret rather than countinous，这个描述都是错的，这个和limitation 也没关。C和B好像都应该选。

Which industry classification system uses a three- tier classification system? A Russell Global Sectors. B Industry Classification Benchmark. C Global Industry Classification Standard A is correct. The Russell system uses three tiers, whereas the other two systems are based on four tiers or levels. 这道题问道了关于3-tier classification system，我没有印象，请老师讲一下？什么是3-tier calssficiation system，还有为什么B、C不对

过度自信的判断标准，是否应该以科学的标准进行衡量更好？我的五次交通事故出险全是无责，其中两次是在雨天。一次全责是等红绿灯时手刹空档看导航溜车追尾，这应该也和我的驾驶技术无关。

注意第一题和第四题

图中，step3 转换成PV时，为什么不加上（1*B4）呢？是因为只算收益部分么？

老师好，我记得COGS中除了存货还有销售人员的工资，这里计算存货周转效率的时候是假设了COGS里全部是存货吗？

36分31秒处，case6，最低费率不是有利于客户？费用不是也是客户出的吗？