Which the three EL expressions, inserted at line 15, are valid and evaluate to "3"? ()
Which three logical expressions evaluate to true?()
Language learners should remember that idiomatic expressions are like vocabulary items, and need ______as complete phrases.
In the expression an, n is an even power. Which of the following expressions does not have even power?
表达式对话框中,Listed Expressions下拉列表中包括哪些类型?