题目内容

教育学的发展历程共有几个阶段？请举出主要代表人物及代表著作。

查看答案

搜索结果不匹配？点我反馈

更多问题

● Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up （71） at the customer premise over slow （72） ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet （73） technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the （74） or cable "modem" over a much faster medium such as Ethernet. It also means that multiple （75） can connect to the Internet through the same connection.

● 以下控制流程图的环路复杂性V(G)等于（54）。
（54） A．4 B．5 C．6 D．1

（28 ）基于下列关系 R 、 S 和 T 的操作中，哪一个是正确的？

● 主板（也称母板或系统板）是计算机硬件系统集中管理的核心载体，几乎集中了全部系统功能，是计算机中的重要部件之一。下图所示的微机主板上，①处是（21），②处是（22）。