虽然谷歌在网络搜索和广告领域的支配地位与微软在操作系统和办公应用软件方面的地位差不多一样，谷歌甚至在某种程度上从根本上挑战微软的核心业务，这种（挑战）是通过它基于网络的文字处理、表格、演示等应用程序来进行的，但是迄今为止这些软件只有很少的用户。
To the extent that Google has challenged Microsoft’s core business at all, it is through its web-based word-processing, spreadsheet and presentation applications. But these, so far, have few users.
UNIX一直都是可靠、安全的多用户操作系统，这使它持续在企业Web和应用程序托管领域占支配地位。
The bottom line is that UNIX was and is a reliable, secure, multi-user operating system that continues to dominate the enterprise Web - and application-hosting landscape.
教学设计在专题学习网站的设计中占有十分重要的地位，它直接决定着专题学习网站的结构和应用效果。
Teaching project plays an important role in the design of subject-based learning website, the structure and impact of application of the subject-based learning website is directly determined by it.
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