问题标题:
设A={1,2},B={2,3,4},则A∩B=()A.{2}B.{1,2}C.{1,3,4}D.{1,2,3,4}
问题描述:
设A={1,2},B={2,3,4},则A∩B=()
A.{2}
B.{1,2}
C.{1,3,4}
D.{1,2,3,4}
舒杨回答:
∵A={1,2},B={2,3,4},
∴A∩B={2},
故选:A.
设A={1,2},B={2,3,4},则A∩B=()
A.{2}
B.{1,2}
C.{1,3,4}
D.{1,2,3,4}