A (68) is used to show you what the computer is doing. It is called (69) equipment as well as the keyboard, the mouse and the printer.

A．input

B．output

C．peripheral

D．electronic

以下哪种规范是已经编制完成实施的典型与电子工程建设相关的设计规范（）。

A.电子工程建设环境保护设计规范

B.电子工程建设节能设计规范

C.洁净厂房设计规范

D.电子工业洁净厂房设计规范