我看到有个英文帖子明确支持了这种观点，具体如下。
a webpage will distribute its rating (notice i didnt say PR) to all the pages its linking to. For example, a site will benefit more if it is the only site that a high rating page is linking to, as compared to if the site is one of hundreds being linked to by the page.
文章整理：西部数码--专业提供域名注册、虚拟主机服务
http://www.west263.com
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