A.(4,4)x
B.(1,2)x
C.(2,3)x
D.无法判断
[问答题]
[单选题]A.B.C.D.
[单选题]A.基数排序B.快速排序C.堆排序D.归并排序
[单选题]A.3周B.1天C.1~2周D.1周E.4周