上一个问题 题号表错了，应该是253题， 对于253题，C选项说不share公司的业绩，那对于participate preferred stock来说，由于NI增加，会有额外的dividend，这不算是share公司业绩吗？

对于254题，C选项说不share公司的业绩，那对于participate preferred stock来说，由于NI增加，会有额外的dividend，这不算是share公司业绩吗？

最后一句80% of returns lie below this return)?啥意思，怎么前面又说70，不是矛盾了吗

CPR是年化的提前偿还速率，那么CPR1=0.2%的意义是站在第一个月看未来一年中提前偿还的比率吗？

Security market indexes are: constructed and managed like a portfolio of securities. simple interchangeable tools for measuring the returns of different asset classes. valued on a regular basis using the actual market prices of the constituent securities. 老师 C为什么不对

老师 EQUITY原版书后题 这题不会 这是什么题型什么考点 看着答案完全不知所云

1.什么样的操作，算是应用soft dollar、直接造福客户？请举几个例子，谢谢。 2.如果是买数据库database，算不算directly benefit？

You own shares of a company that are currently trading at $30 a share. Your technical analysis of the shares indicates a support level of $27.50. That is, if the price of the shares is going down, it is more likely to stay above this level rather than fall below it. If the price does fall below this level, however, you believe that the price may continue to decline. You have no immediate intent to sell the shares but are concerned about the possibility of a huge loss if the share price declines below the support level. Which of the following types of orders could you place to most appropriately address your concern? Short sell order. Good-till-cancelled stop sell order. Good-till-cancelled stop buy order. 原版书后题选B，为什么要加一个定语GOOD TILL CANCELLED 而不是简单的 stop sell？

能否翻译一下三个选项

能否翻译下三个选项