1, literature party downloader: a resource-integrated literature download platform, which integrates almost all Chinese and foreign literature database resources, covering all disciplines and various literature types. There are many resources and the database is authoritative, so it is basically enough to find and download Chinese and foreign literature at home. Adopt client mode. In terms of resource utilization ability, client software >: browser+plug-in > browser, so it has richer resource advantages.

For example, download HowNet literature, double-click the name of HowNet-enter HowNet to retrieve literature-click PDF to download the full text (other Chinese and foreign database literature download methods are basically the same).

2. National Library Reference Alliance: On this network, you will get online reference service and document remote delivery service provided by the National Library. Need to register for use, suitable for Chinese literature search and download. Some documents can be downloaded for free.

3. National Academic Journal Database of Philosophy and Social Sciences referred to as "National Journal Database (NSSD)" is a nationwide, open and public welfare information platform for philosophy and social sciences, which is approved by the National Leading Group for Philosophy and Social Sciences Planning and built by China Academy of Social Sciences. It is suitable for searching and downloading social science documents. Registration is required before use.

4. sciencedirect is a world-famous academic periodical publisher in the Netherlands. A large number of academic books and periodicals are published every year, most of which are included by SCI, SSCI and EI, and they are internationally recognized as high-grade academic periodicals.

Sciencedirect is the full-text database platform of Elsevier Company, and it is the world's largest full-text electronic resource library of science and technology medicine, providing full-text contents of more than 2,500 academic journals and more than 37,000 books. Including CELL Cell magazine, THE LANCET The Lancet magazine and so on.

5.Web of Science database is an internationally recognized database reflecting the level of scientific research, among which SCIE, SSCI, A & amp； Citation index databases such as HCI, JCR journal citation reports and ESI essential science indicators are well-known in the scientific and educational circles all over the world.