中等ict-u02-d03
Unicode is preferred to basic ASCII when:
A. Many world scripts or extra symbols must be represented✓ 答案
B. Only English letters and digits are ever needed
C. Sound has to be sampled
D. Data has to be compressed
解說
ASCII covers English letters, digits and basic symbols in one byte. Unicode assigns code points across many writing systems and symbols, so it is the right choice for multilingual text.