单项选择题
A.Change the advanced power settings of the Balanced power plan.
B.Configure the portable computer to use the Power saver power plan.
C.Configure the portable computer to use the High performance power plan.
D.Restore the Power Saver power plan to the default settings.
单项选择题 Your portable computer is in sleep mode. When you resume work on the portable computer， you are not prompted for a password. You need to ensure that you are prompted for a password each time the portable computer recovers from sleep mode. What should you do？（）
单项选择题 Your Microsoft Windows Tablet PC does not recognize some characters correctly from your input device. You need to ensure that the Windows Tablet PC recognizes all characters correctly. What should you do？（）
单项选择题 Your portable computer has a built-in secondary display on the lid. You need to display your e-mail messages， calendar， and contacts on the secondary display. What should you do？ （）