单项选择题

Which of the following printers would be the BEST choice for printing on multi-part forms?（）

A. Impact printer
B. Thermal printer
C. Inkjet printer
D. Laser printer

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单项选择题

A technician needs to assign a default subnet mask for a class B network to a network device that was just installed. Which of the following would the technician use?（）

A. 224.0.0.1
B. 255.0.0.0
C. 255.255.0.0
D. 255.255.255.0

单项选择题

Which of the following describes the 25 or 9 pin connector with male pins on the back of a laptop computer?（）

A. Parallel port
B. Serial port
C. IEEE 1394 port
D. USB port

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