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d.innerHTML = d.innerHTML + '<a class=\"download_word download_word_lb\" href=\"javascript:;\" id=\"vipdown\" onclick=\"showpay(1)\"><em></em>下载文档(未登录)学生该如何科学用脑描述：记忆，是学习的重要环节，是巩固知识的重要手段。科学记忆，有利于提高学习效率，有利于加速知识积累。下面小编给大家分享学生该如何科学用脑的内容，希望能够帮助大家，欢迎阅读!学生该如何科学用脑1、集中注意，专心用脑，多种感官参与，协同用脑通向大脑</a>';
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