单项选择题 You have a computer that runs Windows 7. Multiple users log on to the computer. The computer has fiveremovable devices. You need to ensure that users can only access removable  devices that have beenpreviously installed on the computer.  What should you modify in the Local Group Policy ?（）

单项选择题 You have a stand-alone computer named Computer1 that runs Windows 7. Several users share Computer1. You need to prevent all users who are members of a group named Group1 from runningWindows Media Player. All other users must be allowed to run Windows Media Player. You must achievethis goal by using the least amount of administrative effort.  What should you do?（）

单项选择题 You have a computer that runs Windows 7. You have an application installation package named app1.msi.You need to perform a customized installation of app1.msi.  What should you do?（）