为什么从B到A，价格会上升（物价水平）？

银行透支算cff流入？同时也是一种liability对么

百题90 这题什么意思。为什么选B

选项C 分子不可以用CFO替代EBIT吗？

老师您好，原版书equity 72页第36题 A financial analyst is examining whether a country's financial market is well functioning. She finds that the transaction costs in this market are low and trading volumes are high. She concludes that the market is quite liquid. In such a market: A. traders will find it hard to make use of their information B. traders will find it easy to trade and their trading will make the market less informationally efficient. C. traders will find it easy to trade and their trading will make the market more informationally efficient. 答案是c，请老师帮忙解释一下，谢谢～

老师您好，原版书equity 68页第18题 Pierre-Louis Robert just purchased a call option on shares of the Michelin Group. A few days ago he wrote a put option on Michelin shares. The call and put options have the same exercise price, expiration date, and number of shares underlying. Considering both positions, Robert's exposure to the risk of the stock of the Michelin Group is : A. long B. short C. neutral 答案是a，请您帮忙解释一下，另外这个知识点是哪个呢？

CFO里面trading security和stock有什么区别呢？

这里在算BEPS的时候，convertible warrant可转成的股数为什么不以时间加权的方式加在分母处呢？

trading放进retained earning 不是么？retained earning不是在balance sheet 中的equity中么，这里为什么他的unrealized g/l要给列进income statement里啊？还有后面这道例题，老师说如果这里的AFS如果试问realized g/l放在哪儿，realized g/l肯定都放I/S里面啊，那老师说放在retained earning 里是几个意思？retained earning是资产负债表里equity的科目啊？？？？

老师 请问这道题c选项 原理上如果知道reverse前的数值，nrv应该怎么算