专利文献基础知识 ppthttp://www.scipo.gov.cn/tools/7%E6%9C%88%E4%BB%A3%E7%90%86%E5%9F%B9%E8%AE%AD/%E5%85%AC
E5%8C%BB%E8%80%83%E7%BA%A2%E5%AE%9D%E4%B9%A6%E4%B8%B4%E5%BA%8A%E6%89%A7%E4%B8%9A%E5%90%AB%E5%8A%A9%E
北大微生物讲义(陈国强)微生物讲义(陈国强)ftp://166.111.30.161/pub/1.%C9%FA%CE%EF%BD%B2%D2%E5/%CE%A2%C9%FA%CE%EF%BD%B
1%E6%BC%A0%E4%B8%8E%E9%A2%9D%E5%8F%B6%E6%8D%9F%E4%BC%A4&local_base=FDU01&filter_code_1=WLN&filter
http://tieba.baidu.com/%**%C7%D3%A2/shipin/plays/%**%C7%D3%A2%B9%E3%B8%E6%CF%B5%C1%D0/#videoId=e
1 独立变量可以聚类分析吗?具体案例链接:http://www.tj211.com/forum-viewthread-tid-712-highlight-%B6%C0%C1%A2%B1%E4%C