为什么左移后长期还会移回来

老师，第四题没看懂翻译是啥意思

老师你好，Reading 28的课后第五题可以讲解一下吗？尤其是为什么会选择C呢？谢谢

为什么第一张图的SSE除以了n-2，而第二张图的SSE没有除以n-2

Which of the following statements clearly conflicts with the recommended procedures for compliance presented in the CFA Institute Standards of Practice Handbook? A Firms should disclose to clients the personal investing policies and procedures established for their employees. B Prior approval must be obtained for the personal investment transactions of all employees. C For confidentiality reasons, personal transactions and holdings should not be reported to employers unless mandated by regulatory organizations. 老师，您好，麻烦把这道题给讲解下，看不懂且不明白

第三个分录没看明白

老师讲1+HPR是本利和我不太懂呢，还有最后的减去1 不理解呢

reading16第30题那个revenue汇率折算不是应该用平均汇率，答案怎么用的年终的汇率

老师，请问EAA法这里终值为何是0?

这个题选B是因为折价债券久期是先上升后下降么？而不是随着时间的上升而上升？