单项选择题

Which of the following is unsafe for a technician to use when troubleshooting or repairing a CRT monitor?（）

A. Anti-static pad
B. Anti-static wrist strap
C. Rubber gloves
D. Multimeter

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Which of the following tools would be BEST to use to pry open the case of a laptop?（）

A. Metal screwdriver
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A user states that when the user copies files from ‘My Documents’ to a network share, the files are no longer available locally. Which of the following BEST describes the reason the files are no longer visible?（）

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