第8题: [单项选择]若某二叉树的前序遍历访问顺序是abdgcefh,中序遍历访问顺序是dgbaechf,则其后序遍历的结点访问顺序是______。 A. bdgcefha B. gdbecfha C. bdgaechf D. 8dbehfca 参考答案:D 答案解析:[解析] 前序遍历的第一个结点a为树的根结点;中序遍历中a的左边的结点为a的左子树, a右边的结点为a的右子树;再分别对a的左右子树进行上述两步处理,直到每个结点都找到正确的位置。
第28题: [单项选择]Passage TwoA. Society is to be held responsible. B. Modem civilization is responsible for it. C. The criminal himself should bear the blame. D. The standards of living should be improved. 参考答案:C 答案解析:[解析] What will the speaker believe if a person is found guilty of a crime [详解] 推断题。短文尾句中