Which of the following printer types uses thin print pins to transfer ink from a fiber or ribbon？ （）

单项选择题Anewcomputerisdisplayingthewrongamountofmemory.Whichofthefollowingmaybethecause？（）

A.The module is installed backwards.
B.A USB device is using some memory.
C.An onboard video card is using some memory.
D.The CPU is using some memory.

单项选择题Atechnicianreceivesalaptopthatisrunningoutofbatterypowermorequicklythanexpected.Whichofthefollowingcanthetechniciandotocorrecttheproblem？（）

A.Note on the work order that the laptop is losing battery capabilities and the laptop must be replaced.
B.Replace the battery by purchasing a new battery from the manufacturer.
C.Stop using the battery and use alternating current （AC） power for the laptop.
D.Replace the AC adaptor by purchasing a new adapter from the manufacturer.

单项选择题Whichofthefollowingwouldbethesafestenvironmentalconditionforworkingonmultiplesystemsatonetime？（）

A.A tiled room with anti-static mats and wrist straps.
B.A clean， carpeted room with anti-static mats and wrist straps.
C.A tiled room in a warehouse with outside ventilation.
D.A clean， carpeted room with air purifiers and dehumidifiers.

多项选择题Whichofthefollowingcanbeusedtodeterminetheamountofphysicalmemoryinstalledinalaptop？（）

A.Check Device Manager Snap-in.
B.Type WINVER in the command prompt.
C.Check the BIOS.
D.Check System Information in the Accessibility folder.
E.Check System Information.

单项选择题Atechnicianreceivesacomputerforrepairandobservesthatthefanonthepowersupplyisnotmoving.Whichofthefollowingshouldthetechniciando？（）

A.Move the power supply voltage switch to 220 volts.
B.Add an additional fan to help cool the computer.
C.Replace the cable that attaches the power supply to the motherboard.
D.Replace the power supply.