听力原文:M: I was wondering if I could take four courses next semester. W: Why don't you choose three instead of four? We already have such a heavy course load. Q: What does the woman suggest the man do? (14)
【简答题】下列 ( ) 应用环境需要进行网络互连。 1一个单位的不同部门选择了不同的局域网,需要将其连接起来 2一个单位的多个建筑物,需要将每个建筑物的局域网进行互连 3大型企业或校园,计算机的数量大,可组成多个子网,再进行互连 4连网计算机的距离超出了单个局域网的最大覆盖范围,可组成多个子网,再进行互连A. ① B. ①② C. ①②③ D. ①②③④ B. 答案:D