题目内容
(请给出正确答案)
[主观题]
[A] in[B] with[C] on[D] for
[A] in [B] with [C] on [D] for
答案
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[A] in [B] with [C] on [D] for
第3题
A.(A∩B)×(C∩D)=(A×C)∩(B×D)
B.(A∪B)×(C∪D)=(A×C)∪(B×D)
C.A×(B∪C)=(A×B)∪(A×C)
D.(A∩B)×C=(A×C)∩(B×C)