单项选择题 On a Windows XP machine, which of the following settings should be configured to allow draggingof files without holding the mouse button?（）

单项选择题 What is the MINIMUM Windows Experience Index recommended for using Aero enhancements in Windows 7?（）

单项选择题 A technician installs an additional hard drive controller. Which of the following processes will MOST likely prevent errors? （）