单项选择题
A.ribbon B.developer C.laser beam D.toner
Whichofthefollowingprintersspraysthepaper？（）A.impactB.l...
多项选择题Which of the following printers sprays the paper？（）
A.impact B.laser C.thermal D.solid ink E.ink jet
Whichofthefollowingshouldatechnicianusetocleantheglasso...
单项选择题Which of the following should a technician use to clean the glass on a flatbed scanner？（）
A.glass cleaner and paper towels B.dish soap and a wet towel C.a soft， pre-moistened towel or wipe D.dry paper towels
Whichofthefollowingprintersprintsmulti-partformsatonce？...
单项选择题Which of the following printers prints multi-part forms at once？ （）
A.ink jet B.thermal C.impact D.laser
