Open access library
This is a paper search website. On this website, you can get 5700000+ academic articles for free, and you can directly search any subject and major you need. The format is basically PDF version, which is very convenient to download, use and view!
National Library Reference Alliance
The National Library Reference Alliance is a massive and free knowledge dissemination platform, which can be called an online digital library with millions of e-books. If you enter keywords in the search box, you can search in the massive book data resources. If you want to obtain foreign language resources, you can click "foreign language literature search", and the search and collection operations are all guided. It is possible to search papers and textbooks with it!
Super weekly profit
This website is a superstar periodical section, through which you can directly enter the home page!
Here, you can directly search the articles of major authorized journals, including authors, institutions, journals, texts, abstracts, etc. , and there are many individual authors, publishing houses, institutions and websites, mainly for college users, and you can log in directly with the learning link ~
Pin number aggregation
If you need to quote industry data, you can use this website to search. Data include finance, consumption, entertainment, Internet medical care, industry, agriculture, advertising, logistics and so on. , involving all walks of life. You can directly search the data of what industry you want, and the data is constantly updated every day. There are also popular data week lists, data reports, data packets, visual data, tabular data and so on!
Peking University publishing house electronic textbook bookshelf
This website is a free electronic teaching material website for universities launched by Peking University Publishing House. Both mobile phones and computers support it. When reading a book, it is also simulated, and the picture is very real. When turning pages, the paper will make a rubbing sound. Scan the QR code of the book and you can read it directly on your mobile phone. This website contains hundreds of college textbooks of different majors. You can find all kinds of professional teaching materials, such as civil engineering, economic management, computer, machinery, art design and so on. If you need to check any knowledge points or teaching materials, you can search here!
Online terminology
An online website that can query various technical terms, after all, the paper is still an academic product, and it is very rigorous. If this term or its interpretation is wrong, it will be embarrassing. In this case, all technical terms have official explanations, and you can directly search what you need, provide a variety of terminology services, as well as terminology-related information and original text transmission. You can also see more recently queried words in the list of hot words.