43 universities use creativity to activate rural culture. The National College Student Rural Revitalization Creative Competition was launched in Nanchong, Sichuan
Understand the application of Ohm's law in shunting in parallel circuits with one question ~ Detailed explanation of junior high school physics and electricity textbook questions
The only fish in the world that has been isolated from the world for 50,000 years. There are only 38 fish left, but they were almost eaten by a drunkard.