题目内容

Laser printer is slower, but less expensive to operate than ink jet printer.

A. 对
B. 错

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Printer resolution is measured by the number of dots printed per linear inch, abbreviated as dpi.

A. 对
B. 错

The Internet is the world’s largest ().

A. WAN
B. MAN
C. LAN
D. PAN

School computer labs and home networks are examples of ()s.

A. WAN
B. MAN
C. LAN
D. PAN

A () could be used to transmit data from a smartphone to a wireless headset.

A. WAN
B. MAN
C. LAN
D. PAN