A、that first byte of the data part
B、the last byte of the data part
C、that first byte of the message head
D、the last byte of the message
喵查答案：that first byte of the data part
What does the sequence number field in the TCP message segment refer to?
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Generally speaking, the higher the sound quality is required, the higher the quantization level and the lower the sampling frequency is. -
The higher the sampling frequency, the closer the discrete digitized sound wave is to its original waveform. -
Audio files in WAV format do not use compression algorithm, so they have good sound restorability, strong stereoscopic impression and relatively large file capacity. -
MPEG video compression standards include MPEG-1, MPEG-2, MPEG-4, MPEG-7 and MPEG-21.
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