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1．正确搜索。现在的搜索引擎很多，对同样的查询词条，各个搜索工具的返回结果是不相同的。如果想获得完全的相关主题URL列表，最好用AltaVista；如果想知道你历次搜索过哪类站点，则HotBot是最好的选择。在搜索时要讲究一些语法技巧。使用专业术语、逻辑符号和关键词的组合，
1. Search correctly. There are many search engines now, and the search results returned by different search engines are not the same for the same query terms. If you want to get a complete list of related topics URL, it is best to use AltaVista; HotBot is the best choice if you want to know which type of site you have searched for. Pay attention to some grammar skills when searching. Using a combination of jargon, logical notation and keywords,