A technician has been asked to ensure a PC is supplied with power for a short ti
A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）
A. Backup power generator
B. Uninterruptable power supply
C. Power line conditioners
D. Surge protectors
正确答案：参考B
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