第6题: [单项选择]Passage Two A. Avoid eating any food. B. Prepare the right type of pie to eat. C. Wash his hands thoroughly. D. Practice eating a pie quickly. 参考答案:A 答案解析:[解析] What should a person do before entering a pie-eating contest
A. out of view B. out of seeing C. out of hand D. out of sight 参考答案:D 答案解析:此题考查固定搭配。out of(one's)sight为固定搭配,意思是“在看不见的地方”。set free after being encaged for weeks在此句中是分词词组作主语the
第33题: [单项选择]设平衡的二叉排序树(AVL树)的结点个数为n,则其平均检索长度为 A. O(1) B. O(log2 C. O( D. O(n log2 参考答案:B 答案解析: [解析]
平衡二叉树又称AVL树,它或者是一棵空树,或者是具有下列性质的二叉树:它的左子树和右子树都是平衡二叉树,且左子树和右子树的深度之差的绝对值不超过1,若将二叉树上结点的平衡因子BF