单项选择题 Which of the following system utilities would be used to change a drive type from dynamic tobasic?（）

单项选择题 On a Windows Vista system, the default location for user data is in which of the followinglocations?（）

单项选择题 A network printer will not print. The printer is online and visible. All the print jobs complete but the printer will not operate. Which of the following is the MOST likely cause?（）