Here are some encyclopedias for you to read in our online library.
The Columbia Encyclopedia (Sixth Edition): An English-language dictionary containing more than 51, 000 topics, the Columbia Encyclopedia provides trusted facts and information. More than 200people make great efforts for depth and accuracy (精确) of the encyclopedia. Its topics are complete and clear.
Medical encyclopedias: Online medical encyclopedias are for doctors, educators and students. The library of free medical encyclopedias contains a variety of trusted facts that cover medical conditions, medicals symptoms(症状),and medical causes of health-related problems.
Computer encyclopedias: Our online library of computer encyclopedias is very useful whether you're looking for in-depth research or just learning about computer technology. The computer encyclopedias include topics like computer science, computer science and engineering, and computer science and technology.
Science encyclopedias: Our online library of science encyclopedias covers a variety of topics from biology, psychology, and chemistry to religion and science discoveries. Our online science encyclopedias for kids are a big help for school research projects and science experiments.
A Doctors B. educators C. scientists D. students