Library

[Welcome to Xueba's supervision system! The purpose of this system is to urge the host to study diligently and forge ahead, to make steady and long-term progress on the road of scientific research, to use the individual to drive the whole group, and ultimately to achieve the great development of science and technology for all mankind! "Is there any benefit?" "Does it count to become a scientific research expert?" ... Dragons entered the sea, China flew into the sky, Chang'e flew to the moon, and the sky asked to detect fire... None of this has anything to do with Xu Ling. What Xu Ling wants to do is to walk the road that has not been walked by the predecessors and build the bridges that have not been built by the predecessors... Let's see how an ignorant college student who failed three subjects in a row became a giant in the development of science and technology with the help of the system...