中等ICT-DATA-004
Why is Unicode used instead of ASCII when a document contains Chinese characters?
A. ASCII is an image format and Unicode is a sound format.
B. ASCII already contains every Chinese character, so Unicode is only for numbers.
C. Unicode can represent many writing systems, including Chinese, while ASCII cannot.✓ 答案
D. Unicode is a network cable.
解說
ASCII covers a small set of characters, mainly English letters and symbols. Unicode is the coding system that can represent Chinese and many other scripts.