中等ICT-MULT-004
For a 30-second welcome message on a web page, why might the club choose MP3 rather than WAV?
A. MP3 is lossy compressed audio and is usually much smaller than an uncompressed WAV of the same clip.✓ 答案
B. WAV is always the smaller file.
C. MP3 is an image format.
D. MP3 is a primary key.
解說
MP3 discards some sound detail to save space. WAV is commonly uncompressed, so the same clip takes much more room. Use WAV when you need the larger master, not when the page must download quickly.