单项选择题
A.print head
B.fuser
C.injector
D.print nozzle
多项选择题 Whichofthefollowingisatypeofmotherboard?()
单项选择题 Whichofthefollowingwouldbethecorrectwaytodisposeofalaptopbattery?()
单项选择题 Acomputerhasbeenupgradedwithanewharddriveandafterreassemblingthecomputerandturningthecomputeron,thedriveLEDremainslitandanerrormessageduringpower-onselftest(POST)states,’NoDrivePresent.’WhichofthefollowingwouldMOSTlikelybethecause?()