NO.PZ2023040301000059
问题如下：
An ETF analyst collected data of an index comprising three stocks as follows:
The base of the index on January 1 2009 is 137, the market value weighted index is closest to:
选项：
A.157
B.87
C.119
解释：
老师，公式的话，current index value 这个写的是current total mkt value or index stocks/base year total mkt value of index stock * base year index value => 怎么知道应该用的是2019Dec的数据去做分子呢？题目没有交代current 是2019Dec...
