多项选择题
Which of the following connection types use a phone line as a carrier to provide access to theInternet?（）
A.Cellular
B.Satellite
C.ISDN
D.WiMAX
E.DSL
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相关考题
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多项选择题
Which of the following is included in the typical laser printer maintenance kit?（）
A. Print head
B. Toner
C. Fuser
D. Main drive assembly
E. Pickup rollers -
单项选择题
A laser printer prints pages with a gray background. Which of the following is the MOST possible cause of the problem? （）
A.Transfer roller
B.Paper type
C.Print head
D.Fuser -
单项选择题
A printer is not pulling paper out of the paper tray. Which of the following is the MOST possible cause of the problem? （）
A. Pickup rollers
B. Print head
C. Drum
D. Fuser
