单项选择题
A. DVI-D B. IEEE 1394b C. HDMI D. USB 3.0
A user states that their laser printer prints black and...
单项选择题A user states that their laser printer prints black and white streaks about half an inch wide down the left side of every page. Which of the following components MOST likely needs replacing?（）
A.Toner B.Transfer roller C.Fuser D.Pickup assembly
A user reports that their thermal wristband printer is ...
单项选择题A user reports that their thermal wristband printer is printing barcodes that will not scan properly.Which of the following maintenance techniques would MOST likely resolve this issue?（）
A. Replace the print roller B. Reset to factory defaults C. Replace the wristband roll D. Clean the heating assembly
Which of the following laptop components will MOST like...
单项选择题Which of the following laptop components will MOST likely need replacing within the first threeyears of use?（）
A. Battery B. Processor C. Memory D. Backlight
