I like to talk about issues in the field of men and women. It would be even more interesting if you can give effective economic…

Chimpanzees are mainly distributed in the tropical rain forests near the equator in Africa. They live in groups, usually led by a male chimpanzee. Chimpanzees…

At the end of the 16th century, Fabrizius worked at the University of Padua in Italy. He was very interested in the body structure of…

Recently, a research team from the National Geographic Society of the United States visited the waters of Argentina’s Tierra del Fuego, the southernmost tip of…

1 Fire, far away, far away, I see fire. The night is too deep and too dark. Deeply dark. I can only come back at…

A Song of Qingyun in the pre-Qin era wrote: “Obviously, there are stars in the sky.” The universe is vast, the space is endless, the…

　　There are very few elevator safety accidents in Canada, which is inseparable from the Canadian government’s emphasis on elevator safety. From the maintenance date of…