Which&ensp;the three&ensp;EL&ensp;ex

Which the three EL expressions， inserted at line 15， are valid and evaluate to "3"？（）

A ${vals.2 }
B ${vals ["2"]}
C ${vals.index }
D ${vals[index]}
E ${vals} [index]
F ${vals.（vals.index）}
G ${vals[vals[index-1]]}

参考答案

参考解析：

分类：SCDCD(310-081)题库

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