题目内容

采用邻接表存储的图的深度优先遍历算法类似于树的(22)，用邻接表存储的图的广度优先遍历算法类似于树的(23)，判断有向图是否存在回路，除了可以利用拓扑排序方法外，还可以利用(24)。

A. 中序遍历
B. 先序遍历
C. 后序遍历
D. 按层次遍历

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如图，某计算机的存储器中连续存储了n个记录，每个记录的长度均为m，t为该段记录中第一个记录的起始地址。那么第n个记录的起始地址为(21)。

A. mn+t
B. m(n-1)
C. m(n-1)+t
D. m(n-t)+1

我们用的掌上电脑通常采用的是(10)，其典型特性有(11)。
①完成某一项或有限项功能，不是通用型的
②在性能和实时性方面有严格的限制
③能源、成本和可靠性通常是影响设计的重要因素，占有资源少，易于连接
④系统功能可针对需求进行裁剪、调整和生成，以便满足最终产品的设计要求

A. 并行操作系统
B. 网络操作系统
C. 嵌入式操作系统
D. 分布式操作系统

“运输工具名称”栏应填()。

A. COSCO HONGKONC/208N
B. COSCO HONGKONG V302N
COSCO HONGKONC/302N
D. M/V COSCO HONGKONC/302N

SECTION A CONVERSATIONS
Directions: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.
听力原文：M: Good morning, Doctor.
F: Good morning, Mr. Smith. What can I do for you ？
M: I feel there's something wrong with me, but I'm not sure.
F: Could you explain more？
M: I usually get a runny nose, watery eyes, scratchy throat and other symptoms on Monday. It will last for the following five days. And since I'm terribly busy with my work, I won't have time to see the doctor. But when I do have time to see the doctor on weekends, the symptoms will disappear all of a sudden.
F: And you will get same symptoms again next Monday？
M: Exactly.
F: How long have you been like this？
M: About one month.
F: Did anything special happen during the past four weeks？
M: Nothing special. Oh, wait! My company has moved from the old address to the present Mount Plaza.
F: Do your colleagues have the same trouble with you？
M: Well, some of them.
F: I see. You must be suffering from so-called sick building syndrome. Some of them can even lead to cancer.
M: That's terrible! Is there anything I can do to the "sick" building？
F: Don't worry. I will write you a prescription to ease your symptoms.
How long has the man suffered from the symptoms he described？

About one weeks.
B. About two weeks.
C. About three weeks.
D. About four weeks.