自从1998年美国麻省理工大学（MIT）提出了CDN （Content Delivery Network,内容发布网络）的概念并设计实现其独有系统以来，这种能够提高Internet网络数据传输速度、改善Internet网络拥挤的状况、提高用户访问网站的响应速度的技术发展日新月异。随着互联网的全面
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1、深海章鱼有南极渊源
许多深海章鱼都具有“南极血统”。深海章鱼的迁移大约出现在3000万年前，当时南极洲地区温度降低，冰层变厚，章鱼被迫迁往更深的水域。与此同时，气候变化导致富含盐分和氧气的冰冷海水逐渐向北流去，章鱼顺水“漂流”到世界其他新海域生活。当它们适应新的生存环境时，新种章鱼也
