【单选题】
这条旋律 “3 4 | 5 6 2 3 | 4 - 1 2 | 3 3 2 2 | 2 1 ||”的节拍为( )
【单选题】
My job entails being on ( ) 24 hours.
【单选题】
已知inta[4][4]={{1,2},{3},{4},{1,2,3}};问a[2][0]该元素的值是()
【简答题】
设 A = {1, 2=,2, 4=,3, 3=},B = {1, 3=,2, 4=,4, 2=},则交关系A∩B等于:[填空1]
【简答题】
设 A = {1, 2=,2, 4=,3, 3=},B = {1, 3=,2, 4=,4, 2=},则求差关系A-B。
【简答题】
设 A = {1, 2=,2, 4=,3, 3=},B = {1, 3=,2, 4=,4, 2=},则对称差关系A⊕B等于:[填空1]
【单选题】
4.After a delay of two hours, it was finally announced that the passengers could now _______ the plane.
【判断题】
设 A = {1, 2=,2, 4=,3, 3=},B = {1, 3=,2, 4=,4, 2=},则并关系A∪B的定义域dom(A∪B)等于:{1,2,3,4}。
【简答题】
设 A = {1, 2=,2, 4=,3, 3=},B = {1, 3=,2, 4=,4, 2=},求交关系A∩B的值域ran(A∩B)。