人们常对一套音响设备评头论足,说它如何保真,音响高保真主要是指( )
A:音调和响度
B:响度与音色
C:音调和音色
D:音调、响度和音色
-- Tom, will you go to see the film Lost In Thailand this evening?
-- No, I won't. I _______ it already.