(单选题)5: 下例程序执行后,X和Y的值分别为 。process(A,B,C)
variable D : std_logic;
begin
D := A;
X <= B+D;
D := C;
Y <= B+D;
end process;
A: B+C和B+A
B: B+A和B+C
C: B+C和B+C
D: B+A和B+A
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