单项选择题 You connect your computer to a wireless network. You discover that this new connection fails to show in the Connect to a network window.  You need to view this connection in the Connect to a network window.  What should you do？（）

多项选择题 Your wireless network is not listed in the Connect to a network window of your computer. You need to connect to your wireless network.  Which two actions should you perform？（）

单项选择题 Your computer has a wireless network adapter installed. However， the computer fails to connect to the wireless network.  You need to ensure that the computer is able to connect to the wireless network.  What should you do？（）