问题
单项选择题
A ______ is a computer communication network in a local area, which connects various computers.
A．Internet
B．MAN
C．WAN
D．LAN
答案
参考答案：D
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A ______ is a computer communication network in a local area, which connects various computers.
A．Internet
B．MAN
C．WAN
D．LAN
参考答案：D