下列描述正确的有:
A、
B、
C、
D、{1, 2},{a, b}, 则{(1, a), (2, a), (1, b), (2, b)},Æ,{1, 2, a, b}.
A、
B、
C、
D、{1, 2},{a, b}, 则{(1, a), (2, a), (1, b), (2, b)},Æ,{1, 2, a, b}.
A.12AB:0000:0000:CD30:0000:0000:0000:0000/64
B.12AB:0:0:CD3/64
C.12AB:CD30/64
D.12AB:0:0:CD3:/64
E.12AB:CD3:/64
A.12AB:0:0:CD30::/60
B.12AB:0:0:CD3/60
C.12AB::CD30/60
D.12AB::CD3/60
A.12AB::CD30::/60
B.12AB:0:0:GD30:0:0:0:0/60
C.12AB::CD30:0:0:0:0/60
D.12AB:0:0:CD30::/60
A.12AB:0:0:CD30::/60
B. 12AB:0:0:CD3/60
C. 12AB::CD30/60
D. 12AB::CD3/60
A.12AB:0000:0000:CD30:0000:0000:0000:0000/60
B.12AB:0:0:CD3/60
C.12AB:CD3/60
D.12AB:0:0:CD30::/60
E.12AB::CD3::/60
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