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判断题 The data-link layer organizes bits into logical units called frames. It is responsible only for node-to-node delivery of the frame. ( ) 对( ) 错

A. 对
B. 错

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判断题 A WAN is the connection of individual computers or LANs over a large area. ( ) 对 ( ) 错

A. 对
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判断题 A MAN is the connection of individual computers or LANs over a large area. ( ) 对 ( ) 错

A. 对
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判断题 static documents are programs residing at the server site. ( ) 对 ( ) 错

A. 对
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