设集合P={3,log2a},Q={a,b},若P∩Q={0},则P∪Q= [ ]A.{3,0} B.{3,0,1} C.{3,0,2} D.{3,0
题型:单选题难度:简单来源:月考题
设集合P={3,log2a},Q={a,b},若P∩Q={0},则P∪Q= |
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A.{3,0} B.{3,0,1} C.{3,0,2} D.{3,0,1,2} |
答案
B |
举一反三
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A. (-∞,2] B. [-1,+∞) C. (-1,+∞) D. [-1,2] |
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难度:|
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