The goal of Sci-Hub is to provide free and unrestricted access to all scientific knowledge ever published in journal or book form. Today the circulation of knowledge in science is restricted by high prices. 这时候，Sci-Hub就像一位救星。 但它的网址也确实让人心累，三天两头换，好不容易收藏的链接，某天一点开，发现又打不开了。 今天这篇文章，就是来解决这个麻烦的。 我花了些时间，把网络上散落的、经过验证的可用网址信息整理了一下，并且亲自做了测试。 Sci-Hub has the largest ( 88 million documents) database of full-text scientific papers, available for free. Approximately 80% of the collection are articles from scientific journals, most of them dedicated to the subject of medicine. The Science Citation Index Expanded supports research and helps uncover hidden connections, make high-stakes decisions and save time. Read more. ScienceDirect is the world's leading source for scientific, technical, and medical research. Explore journals, books and articles. 如果你是科研萌新，面对满屏的SCI、CSSCI、北核南核、CPCI…是不是感觉像在看天书？ 导师说“发个C刊”，你偷偷百度半小时还是云里雾里？ 别慌！ 这篇零基础扫盲攻略，用“说人话”的方式，一次性帮你理清所有困惑！ … Sci-Hub is helping millions of students and researchers, medical professionals, journalists and curious people in all countries to unlock access to knowledge. The mission of Sci-Hub is to fight every obstacle that prevents open access to knowledge: be it legal, technical or otherwise. Sci-Hub科研学术导航,汇集文献检索、论文查重、期刊发表、写作降重，免费下载中外文文献、电子图书、专利等，为广大科研人员在学术道路上提供方便快捷的服务！ 最新SCI期刊影响因子查询及投稿分析系统 期刊收藏夹 2026年6月最新影响因子数据已更新，欢迎查询使用。 如果您对期刊系统有任何需求或者问题，欢迎 点击此处 反馈给我们。.