460.Given two different character sets (A and B), which of the following must be true for A to be considered a strict superset of B? (Choose all that apply.)
A.A must contain all of the characters defined in B.
B.A must be Unicode.
C.The encoded values in A must match the encoded values in B for all characters defined in B.
D.A must be a multibyte character set.
E.The encoded values in A must match the encoded values in B for all numeric and alphabetic characters in B.
正确答案是AC