Hint: the tiny a net provides the terrace of the information exchanges only, the wrong a contents for announcing owns the copyright, its copyright belongs to announce the square all!
免责提示：微服网仅提供信息交流的平台，不对所发布的内容拥有版权，其版权属发布方所有！
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Teaching net, as one of contents of the foundation of campus networking, ACTS important role in instruction, research, management and information release.