Which two statements are true about the rules of precedence for operators? (Choose two.)
A. The concatenation operator | | is always evaluated before addition and subtraction in an expression
B. Multiple parentheses can be used to override the default precedence of operators in an expression
C. Arithmetic operators with equal precedence area evaluated from left to right within an expression
D. NULLS influence the precedence of operators in an expression
E. The + binary operator has the highest precedence in an expression in a SQL statement
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