97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

單項(xiàng)選擇題

A technician is checking on a printer that is frequently jamming. The jams always consist ofmultiple papers becoming stuck. The paper in the printer was just reloaded this morning. Which of the following is the MOST likely reason for the jams?()

A. The drum is old and needs to be replaced.
B. The fuser is not coming up to the proper temperature.
C. The paper tray rollers are too tight.
D. The paper is damp due to humidity.

微信掃碼免費(fèi)搜題