单项选择题 Which of the following should be performed after a maintenance kit has been applied and fullfunctionality tested?（）

单项选择题 Within a 64-bit Windows desktop OS, by default where are the program files for 32-bit programs located?（）

单项选择题 A user’s workstation currently has four connected IDE devices. Which of the following could be added to the workstation to allow more ATA devices to be added to the workstation?（）