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[单选题]
下列各式中不成立的是?()
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)
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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)
A.arg(-3+4i)=π一arctan4/3
B.arg(-3i)=arg(-i)
C.arg(-3+4i)2=2arg(-3+4i)
D.z·z=∣z-∣2
A.2》5
B.3》=3
C.1!=1
D.6==5
A.①
B.④
C.①④
D.②③