The legal hexadecimal number is( ).
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The two most important new media are CD-ROM and Internet.
A. 对
B. 错
A special printer driver is used to produce a PDF document.
A. 对
B. 错
Computer paint programs do not allow you to draw your images directly in the computer.
A. 对
B. 错
The early laser printers can operate at 300-1200 dpi.
A. 对
B. 错