1.設(shè)U={0,1,2,3,4},A={0,1,2,3},B={2,3,4},則(A) (B)=( )
(A){0} (B){0,1} (C){0,1,4} (D){0,1,2,3,4}
2.函數(shù)y=是( )
(A)奇函數(shù) (B)偶函數(shù) (C)非奇非偶函數(shù) (D)既是奇函數(shù)又是偶函數(shù)
3.下列關(guān)系中正確的是( )
(A)()<()<() (B)()<()<()
(C)()<()<() (D)()<()<()
4.設(shè) ,,則( )
(A)(B)(C) (D)
5. 函數(shù)在[a,b]上為單調(diào)函數(shù),則