单项选择题
A. The newly installed RAM has a lower clock speed than the existing RAM.
B. The CPU is not configured to work with the additional RAM.
C. The system is incompatible with the new RAM.
D. The new RAM is of lower quality, and not dependable at higher speeds.
单项选择题 A user reports that they are unable to open any audio files. Yesterday, the user uninstalled third party music software. Which of the following is the MOST likely cause of the user’s error?（）
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?（）