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={2,3,5},集合 ={1,3,4,6},则集合A.∩∁UB=( ) A.{3} B.{2,5} {1,4,6} {2,3,5}
={1,2,3,4,5,6}, ={4,5,6,7,8},则满足S.⊆A.且S.∩B.≠∅的集合S.的个数是 ( ) A.57B.56 49 8
{1,2,3,4,6} {1,2,3,4,5} {1,2,5} {1,2}
{3} {4,5} {4,5,6} {0,1,2}
={1,2,4,6}, ={2,3,5},则韦恩图中阴影部分表示的集合() A.{2}B.{3,5} {1,4,6} {3,5,7,8}
{1,2,3,4,6} {1,2,3,4,5} {1,2,5} {1,2}
={2,3,5},集合 ={1,3,4,6},则集合A.∩∁U.B.=( ) A.{3}B.{2,5} {1,4,6} {2,3,5}
={1,2,3,5}, ={2,4,6},则图中的阴影部分表示的集合为( ) A.{2}B.{4,6} {1,3,5} {2,4,6}
={0,1,2,3}, ={3,4,5},则(∁U.A.)∩B.等于 A..B.
{1,3,1,2,4,5} {1} {1,2,3,4,5} {2,3,4,5}
int a[]=('0','1','2','3','4','5','6'); int a[10]=0,1,2,3,4,5,6; char a[5]="hello"; char a[5]='h','e','1','1','o';
int a[]='0','1','2','3','4','5','6'; int a[10]=0,1,2,3,4,5,6; C. char a[5]="hello"; D. char a[5]='h','e','l','l','o';
={1,2,3}, ={2,5,6},则A.∩(∁U.B.)等于( ) A.{2}B.{2,3} {3} {1,3}
∅ {2,4,7,8} {1,3,5,6} {2,4,6,8}
int a[]='0','1','2','3','4','5','6'; int a[10]=0,1,2,3,4,5,6; char a[5]="hello"; char a[5]='h','e','l','l','o';
={4,5,6}, ={2,3,4],则A.∪B.中有( )个元素. A.1B.4 5 6
={1,2,3,5}, ={2,4,6},则图中的阴影部分表示的集合为( ) A.{2}B.{4,6} {1,3,5} {4,6,7,8}