在点-点式网络中，每条物理线路连接一对计算机。假如两台计算机之间没有直接连接的线路，那么它们之间的分组传输就要通过中间节点的（）来进行。

注意：下面出现的所有文件都必须保存在考生文件夹下。 (1)打开工作簿文件EX3.XLS(内容如下)，将工作表sheet1的A1:D1单元格合并为一个单元格，内容居中，计算“平均值”行的内容，将工作表命名为“职工工资情况表”。(2)打开工作簿文件EX5.XLS(内容如下)，对工作表“选课成绩表”内的数据清单的内容进行自动筛选，条件为“课程名称为多媒体应用”，筛选后的工作表还保存在EX3.XLS工作簿文件中，工作表名不变。 点击查看答案

Write a composition of about 400 words on this topic:1. Is Romantic Love the Most Important Condition for Marriage? In the first part of your writing you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you hove written to a natural conclusion or a summary. Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks. Write your composition on ANSWER SHEET FOUR. 点击查看答案