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單項選擇題

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

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單項選擇題

Which of the following expansion cards can be installed into an AGP slot?（）

A. Modem
B. Network
C. Video
D. RAID

單項選擇題

Which of the following offers the HIGHEST wireless security?（）

A. WEP
B. WPA2
C. WPA
D. HTTPS