科学上网名称：冲鸭搜索
知名的搜索引擎。与谷歌的不同之处在于：不会根据用户的个人资料对搜索结果进行再次筛选。它重视用户隐私，避免个性化搜索所带来的过滤泡沫。特点是：对同一组关键字的用户展示一致的结果。
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