我们通过电视观看王亚平太空授课时,不看电视画面,仅凭声音就知道是王亚平在讲话,判断的依据是声音的( )
A:音调
B:响度
C:音色
D:频率
读图四国轮廓图,回答下列问题。
—Yes. It was ______ exciting that I would never forget it.