单项选择题
A. The file associations were not returned after the software was uninstalled.
B. The user is not opening the files correctly.
C. The uninstalled software has corrupted all the audio files on the computer.
D. The sound card is not properly configured.
单项选择题 A technician is installing a memory upgrade for a remote user. The technician notes that the machine is not reporting the correct amount of memory that was installed during the POST step. Which of the following actions should the technician perform FIRST?（）
单项选择题 When using CHKDSK, which of the following parameters locks the volume, locates bad sectorsand recovers readable information?（）
单项选择题 Which of the following commands should Mike, a technician, use to display the available switches of a command line utility?（）