题干
-------What do you think of the music teacher?
-------_____________she is an elegant lady, she can be extremely difficult to work with.
-------_____________she is an elegant lady, she can be extremely difficult to work with.
A：While
B：Whe
C：Even if
D：A
答案(点此获取答案解析）
A
（－3≤x≤3）的值域是( )
