单项选择题

Which of the following desktop hardware should a technician be MOST concerned with disposing of correctly？（）

A.batteries
B.power cords
C.disk drives
D.hard drives

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单项选择题

Duringbootup，alaptopscreendisplaysverticalcoloredlinesandthentheLCDscreengoesblank.Therearenodisplayproblemswhenconnectedtoanexternalmonitor.Whichofthefollowingactionsshouldbetakentoresolvetheproblem？（）

A.Replace the laptop.
B.Replace the LCD screen.
C.Replace the LCD pixels.
D.Re-select the LCD in Device Manager.

单项选择题

Whenconnectingalaserprintertoanetworkforthefirsttime，atechnicianshouldFIRST：（）

A.configure the network settings on the printer.
B.ensure the cable is set to TCP/IP.
C.enable the printer in the BIOS.
D.configure the printer as bi-directional in Windows.