in principle, midi files contain sequences of midi protocol messages. however,when midi protocol （ ） are stored in midi files, the events are also time-stamped for playbackin the proper sequence. musi
in principle, midi files contain sequences of midi protocol messages. however,when midi protocol （ ） are stored in midi files, the events are also time-stamped for playbackin the proper sequence. music delivered by midi files is the most common use of midi today。（2005年下半年网络工程师真题解析）
A、messages
B、packets
C、frame
D、information
参考答案：A
参考解析：正在整理中,欢迎在文下评论区解答,谢谢！