啥意思？

题干里的consider 。。。as financing activity，为啥要说这句话？

A bond is currently trading for $109.246 per $100 of par value. If the bond's yield to maturity falls by 25 bps, the bond's full price is expected to rise to $110.481. If the bond's yield to maturity rises by 25 bps, the bond's full price is expected to fall to $108.029. The bond's approximate convexity is closest to: 这道题我按了好几遍计算机，算出的答案都是24.2857，请问是保留小数点的原因吗，考试的时候遇到类似的情况是选最接近的那个答案？

比较风险大小这里，prefered stock前面确定没有少一个putable吗？应该是putable common stock 风险小于putable preferred stock吧？

什么是treasury stock，为啥是equity的备抵账户？

什么是non-controling interest？

分析财报的时候看Comprehensive income是说NI是跟公司经营相关的收入，OCI是一些浮盈浮亏的钱吗？一般分析只要看NI就可以了对吗

HTM，AFS，trading具体有哪些资产划归进这三类？

C选项里有一个accumulated，为啥跟OCI表示同一个意思？

normal operating cycle是一年内的意思？