chemBlink官网
chemBlink provides a free database of chemicals from around the World, searchable for product identifications, CAS numbers, SDS, formulas, suppliers and more. Contact us today.
点击进入 - 2023-11-02 - 收藏Find Articles官网
Find Articles论文搜索网提供多种顶极刊物的上百万篇论文,涵盖艺术与娱乐、汽车、商业与经融、计算机与技术、健康与健身、新闻与社会、科学教育、体育等各个方面的内容。
点击进入 - 2023-11-02 - 收藏Book Gold Mine
Book Gold Mine可免费提供大量优质的电子书,演讲稿,笔记和其他类型的文档。提供的类别有很多,比如生物学、商业、计算机科学、数学和物理学等,如果您需要以上类似的PDF文档,这是一个很有用的PDF搜索引擎。Free e-books, lectures, notes and other documents in various subjects
点击进入 - 2023-11-02 - 收藏SCIRP Open Access
Scientific Research Publishing is an academic publisher with more than 200 open access journal in the areas of science, technology and medicine. It also publishes academic books and conference proceedings.
点击进入 - 2023-11-02 - 收藏Thèses官网
Moteur de recherche des thèses françaises, theses.fr propose l’accès aux thèses de doctorat soutenues ou en préparation. Grâce à son moteur de recherche et sa navigation par facette, l’interface donne accès aux données des thèses : titre, docteur, disciplines, directeurs, établissements de soutenance, écoles doctorales, partenaires de recherche, date de soutenance et éventuellement au texte intégral.
点击进入 - 2023-11-02 - 收藏Bioline International
Bioline International is a not-for-profit scholarly publishing cooperative committed to providing open access to quality research journals published in developing countries. BI\'s goal of reducing the South to North knowledge gap is crucial to a global understanding of health (tropical medicine, infectious diseases, epidemiology, emerging new diseases), biodiversity, the environment, conservation and international development. By providing a platform for the distribution of peer-reviewed journals (currently from Bangladesh, Brazil, Chile, China, Colombia, Egypt, Ghana, India, Iran, Kenya, Malaysia, Nigeria, Tanzania, Turkey, Uganda and Venezuela), BI helps to reduce the global knowledge divide by making bioscience information generated in these countries available to the international research community world-wide.
点击进入 - 2023-11-02 - 收藏2024年浙江省单独考试招生考试报名系统
2024年浙江省单独考试招生考试报名系统https://pgzy.zjzs.net:4431/login.htm说明:考生参加考试报名时请先以有效证件注册账号,该账号在本系统所有考试项目通用,不需重复注册。 注意:请使用360安全浏览器(兼容模式)、Google Chrome、Mozilla Firefox、IE8.0及以上版本浏览器,不要使用手机和平板电脑。
点击进入 - 2023-11-01 - 收藏