问题：

[多选] Which two are true about aggregate functions?（）

A . You can use aggregate functions in any clause of a SELECT statement.
B . You can use aggregate functions only in the column list of the SELECT clause and in the WHERE clause of a SELECT statement.
C . You can mix single row columns with aggregate functions in the column list of a SELECT statement by grouping on the single row columns.
D . You can pass column names, expressions, constants, or functions as parameters to an aggregate function.
E . You can use aggregate functions on a table, only by grouping the whole table as one single group.
F . You cannot group the rows of a table by more than one column while using aggregate functions.