设集合M={1,2,4,8},N={x|x是2的倍数}，则M∩N=

A.{2,4}                        B.{1,2,4}                            C.{2,4,8}                            D{1,2,8}

（2010湖北文数）1.设集合M={1,2,4,8},N={x|x是2的倍数}，则M∩N=

A.{2,4}                        B.{1,2,4}                            C.{2,4,8}                            D{1,2,8}

 设集合M={1,2,4,8},N={x|x是2的倍数}，则M∩N=

A.{2,4}             B.{1,2,4}               C.{2,4,8}               D{1,2,8}

设集合M={1,2},N={a²},则“a=1”是“N⊆M”的(　　).

A.充分不必要条件  B.必要不充分条件

C.充要条件        D.既不充分也不必要条件

设集合M={1,2,4,8},N={x|x是2的倍数}，则M∩N=

A.{2,4}                        B.{1,2,4}                            C.{2,4,8}                            D{1,2,8}