properties of security market index是大盘指数的意思？

NO.PZ2018062002000038 问题如下 Whiof the following statement cannot explain the important properties of security market inx? A.It creflemarket sentiment. B.It cusea benchmark of manager performance. C.It cuseto accurately estimate the market changes of the next perio is correct.Security market inx creflemarket sentiment, ancusea benchmark of manager performance. However, market changes over the next periocnot accurately estimate考点security market inxA.股票指数（大盘指数的表现）可以反映整体经济、市场的情况，戏称“经济的晴雨表”。B.大盘指数可以被用于衡量主动型投资经理的业绩表现。C.股票指数只能反映当下的市场情况，不能用于准确估计接下里市场的变动。 如题。

NO.PZ2018062002000038 老师这个题的c 如果说可能能预测下一年 是不是对的？

It cusea benchmark of manager performance. It cuseto accurately estimate the market changes of the next perio Security market inx creflemarket sentiment, ancusea benchmark of manager performance. However, market changes over the next periocnot accurately estimate麻烦一下？谢谢。