单项选择题
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
单项选择题 Whichofthefollowingprintersprintsmulti-partformsatonce？（）
多项选择题 Atechnicianisinstallingaprinterthatusesaparallelcabletoconnecttoacomputer.Whichofthefollowingpinconfigurationsmightthetechnicianencounter？（）
单项选择题 Aprintertakesalongtimetoprinthigh-endgraphics.WhichofthefollowingwouldbetheFIRSTactiontotake？（）