题目内容
局域网工程包括设计、布线、安装、测试、调试、交付使用等各个环节。
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连接在不同交换机上的、属于同一vlan的数据帧必须通过trunk传输。
If you hadn’t gone with Tom to the party last night,______.
Supposing this ship ______ , do you think there would be enough life jackets for all the passengers?
The insects would devour all our crops and kill our flocks and herds, if ______ for the protection we get from insect-eating animals.
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