问题
单项选择题
The connection between two networks from an intemet is handled by a machine known as a（）
A.bridge
B.server
C.router
D.switch
答案
参考答案：C
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The connection between two networks from an intemet is handled by a machine known as a（）
A.bridge
B.server
C.router
D.switch
参考答案：C