问题如下图：
选项：
A. 
B. 
C. 
解释：
statement 6错在哪里？
7. Whiof Silveira’s statements concerning momentum incators is correct? Statement 5 only Statement 6 only Both Statement 5 anStatement 6 A is correct. Relative-strength incators compare equity’s performanwith the performanof a group of equities or with its own past performance. SUE is unexpecteearnings scalethe stanrviation in past unexpecteearnings (not the stanrviation of analysts’ earnings forecasts, whiis usein the calculation of the scaleearnings surprise) 请问老师这道题相关的知识点是新的讲义中的哪页？是不是删除了？一点印象都么有。。
Statement 6 only Both Statement 5 anStatement 6 A is correct. Relative-strength incators compare equity’s performanwith the performanof a group of equities or with its own past performance. SUE is unexpecteearnings scalethe stanrviation in past unexpecteearnings (not the stanrviation of analysts’ earnings forecasts, whiis usein the calculation of the scaleearnings surprise)statement3和4是哪一部分的内容，完全没有印象了，请老师提示一下
7. Whiof Silveira’s statements concerning momentum incators is correct? Statement 5 only Statement 6 only Both Statement 5 anStatement 6 A is correct. Relative-strength incators compare equity’s performanwith the performanof a group of equities or with its own past performance. SUE is unexpecteearnings scalethe stanrviation in past unexpecteearnings (not the stanrviation of analysts’ earnings forecasts, whiis usein the calculation of the scaleearnings surprise) 麻烦老师一下A，谢谢
7. Whiof Silveira’s statements concerning momentum incators is correct? Statement 5 only Statement 6 only Both Statement 5 anStatement 6 A is correct. Relative-strength incators compare equity’s performanwith the performanof a group of equities or with its own past performance. SUE is unexpecteearnings scalethe stanrviation in past unexpecteearnings (not the stanrviation of analysts’ earnings forecasts, whiis usein the calculation of the scaleearnings surprise) 请教一下，怎么理解Statement 6错误， unexpecteearnings也是earnings一部分，为什么不能用earnings 的stanrviation来衡量呢
对应的课程内容是哪个呢？
