多项选择题
A.Start the Microsoft Windows Media Center Service Launcher service.
B.Enable the File and Printer Sharing Windows Firewall exception.
C.Connect your computer to the same subnet as the network projector.
D.Type the IP address of the network projector in the Connect to a Network Projector wizard.
单项选择题 You plan to give an on-site presentation. The external display available for your audience is a 42-inch flat panel monitor. You need to ensure that the presentation on the monitor of your computer is duplicated on the external monitor for the audience. What should you do？（）
单项选择题 You connect your computer to a multimedia projector. When you play a video， you cannot hear the audio. You need to ensure that the projector provides audio and video playback. What should you do？（）
单项选择题 When you connect an external monitor to your portable computer， the same image appears on both monitors. You need to drag a window from one monitor to the other. What should you do？（）