问题
选择题
已知A={2,4,5,7},B={3,4,5},则A∩B等于( )
A.{1,6}
B.{4,5}
C.{2,3,4,5}
D.{1,2,3,6,7}
答案
∵A={2,4,5,7},B={3,4,5},
∴A∩B={4,5}.
故选B
已知A={2,4,5,7},B={3,4,5},则A∩B等于( )
A.{1,6}
B.{4,5}
C.{2,3,4,5}
D.{1,2,3,6,7}
∵A={2,4,5,7},B={3,4,5},
∴A∩B={4,5}.
故选B