科学上网名称：冲鸭搜索
著名搜索引擎。与谷歌的不同之处在于：不依据用户的个人信息对搜索结果进行二次筛选。该搜索引擎重视用户隐私，避免个性化搜索带来的过滤气泡。特点是：针对同一组关键词的用户呈现一致的结果。
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