单项选择题
Which of the following attributes is set when a file is ready to be backed up?（）
A.a
B.h
C.r
D.s
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多项选择题
Which of the following Windows versions includes Windows Defender, by default?（）
A. Windows Vista Home Premium
B. Windows 2000 Professional
C. Windows XP Pro
D. Windows XP Pro x64
E. Windows Vista Pro -
单项选择题
A technician is trying to install a previous-generation expansion card into their new laptop.However, the card refuses to fit into the expansion slot. Which of the following is MOST likely the reason?（）
A. The card needs to have the compatibility jumpers set before it can be installed into the system.
B. The card is a PCI Express card and the laptop supports pcmica.
C. The expansion slot needs to be enabled in the blos first.
D. The card is a PCMCIA card and the laptop supports PCI Express cards. -
单项选择题
A user’s OS has become corrupt, and the user would like to restore the PC back to when they first bought the machine. Which of the following would be the BEST choice?（）
A. Factory Recovery Partition
B. Use Safe Mode
C. Last Known Good Configuration
D. Purchase a copy of the original OS
