正确答案: C
上拉电阻
题目:8051单片机的P0口做为输出口使用时必须接()。
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学习资料的答案和解析:
[单选题]I/O设备经接口与单片机连接,不传输数据时对总线呈高阻,这是利用接口的()功能。
三态缓冲
[单选题]Your company has an Active Directory domain. A server named Server1 runs Windows Server 2008. The Terminal Services role and the Terminal Services Web Access role service are installed on Server1.You install the Terminal Services Gateway role service on Server1. You create the Terminal Services connection authorization policy. Users report that they cannot connect to Server1. You need to ensure that users can connect to Server1.What should you do?()
Configure the Terminal Services Resource Authorization Policy (RAP) on Server1.
[单选题]家用电器中使用的单片机应属于计算机的()
测量、控制应用