单项选择题
A.3,5,12,8,28,20,15,22,19 B.3,5,12,19,20,15,22,8,28 C.3,8,12,5,20,15,22,28,19 D.3,12,5,8,28,20,15,22,19
A.顺序查找 B.二分法C.利用二叉搜索树 D.利用哈希(hash)表