问题如下图：
选项：
A. 
B. 
C. 
解释：
我看讲义上，profitability 可以用比 Rev或者是Capital来衡量，那么哪种才是呢，如果按照比Capital确实没变，但如果譬如Net profit margin=Tax bur*int bur*EBIT margin 确是下降的。 当然不影响这个题目的选择。那么到底这个题目额profitablity是不变还是下降啊
NO.PZ2016012101000130问题如下A composition of ROE for Integra SA is follows:Whiof the following choices best scribes reasonable conclusions analyst might make baseon this ROE composition?A.Profitability anthe liquity position both improvein FY12.B.The higher average trate in FY12 offset the improvement in profitability, leaving ROE unchangeC.The higher average trate in FY12 offset the improvement in efficiency, leaving ROE unchangeis correct.The increase in the average trate in FY12, incatethe crease in the value of the tburn (the tburn equals one minus the average trate), offset the improvement in efficienincatehigher asset turnover) leaving ROE unchange The EBIT margin, measuring profitability, wunchangein FY12 anno information is given on liquity.解析考察的知识点是ROE的分解，其中衡量profitability的是EBIT margin，该比率没变，所以probability没有改善，A不对。Tburn=NI/EBT=（EBT-tax）/EBT=1-trate，tburn下降说明税率上升，B说税率上升带来的对ROE的负面影响被profitability的提高抵消了，但是profitability没变，所以B不对。C说税率上升带来的对ROE的负面影响被efficiency的提高抵消了，efficiency用asset turnover衡量，确实是变好了，所以C正确。老师这是杜邦的五步法，能不能稍微具体一下怎么来看这样的变动会造成efficiency还是profitability的变化呀。谢谢
NO.PZ2016012101000130 单位资产revenue更高，盈利能力更好啊
NO.PZ2016012101000130 请问衡量profibility是看EBIT MARGIN还是tburn？
请问这题是要求我们剖析数据的变化是吗？麻烦翻译及讲解一些各项答案，谢谢
