Free Computer Books
Links to Free Programming, Computer, Mathematics, Technical eBooks and Lecture Notes all over the World, Directory of online free programming, computer, engineering, mathematics, technical books, ebooks, lecture notes and tutorials. Very well categorized. Equipped with advanced search engines.
点击进入 - 2023-11-03 - 收藏
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
ChemicalBook - Chemical Search Engine
Chemicalbook is a platform dedicated to provide the most valuable resources for chemical industry users. Here you can get chemical information (such as chemical physical properties, safety data, Excellent china suppliers and their web addresses and etc.)by searching the name, CAS number, molecular formula, molecular weight, MDL number, EINECS number, structure.
点击进入 - 2023-10-13 - 收藏
GeeksforGeeks官网
A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.
点击进入 - 2022-11-10 - 收藏
LintCode炼码平台
Powerful coding training system. LintCode has the most interview problems covering Google, Facebook, Linkedin, Amazon, Microsoft and so on. We provide Chinese and English versions for coders around the world.
点击进入 - 2022-11-10 - 收藏
G Directory
G Directory is directory of links organised into categories sorted topic wise. Listings in a variety of categories. A searchable web directory of sites categorized by topic, offering free and paid listings.www.gdirectory.info
点击进入 - 2017-09-14 - 收藏
Mind42网站
Mind42:基本WEB在线思维导图制作工具是一个在线制作流程图和思维导图的网站，该网站免费使用，没有任何限制，直观的UI界面让用户快速上手，用户也可以分享、嵌入或者导出自己设计的作品。Get an overview about the different kind of mind map created on Mind42. Mind42 is a free online mind mapping software that allows you to collaborate on and publish your mind maps with others.mind42.com
点击进入 - 2016-08-22 - 收藏
赛门铁克认证服务
Symantec™ Authentication Services powered by VeriSign provides solutions that allow companies & consumers to engage in communications & commerce online with confidence. Symantec™ Authentication Services include SSL Certificates, Extended Validation SSL, two-factor authentication, identity protection, code signing & public key infrastructure (PKI).
点击进入 - 2014-02-28 - 收藏