单选题Which of the following is the FIRST thing a technician should do before putting their hand inside a computer case?（）AAcquire the appropriate tools that are going to be used.BTouch the case to discharge static.CRemove loose jewelry.DRefer to manufacturer documentation.
单选题
Which of the following is the FIRST thing a technician should do before putting their hand inside a computer case?（）
A
Acquire the appropriate tools that are going to be used.
B
Touch the case to discharge static.
C
Remove loose jewelry.
D
Refer to manufacturer documentation.
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