Ai Qing introduced as follows:
Ai Qing (19 10 March 27 ~1May 5, 1996), whose real name is Jiang Haicheng (formerly known as Jiang Zhenghan, famous as Yuan Hai Cheng), is a native of Jinhua, Zhejiang, a modern writer, poet and painter. He used to be the vice chairman of the Chinese Writers Association and the vice chairman of the International PEN Center. 1985 won the highest medal in French literature and art.
1996 15 died at 4: 05 am on May 5, at the age of 86. Ai Qing is regarded as one of the representative poets of China's modern poetry. His main works are Dayan River-My Nanny and Selected Poems of Ai Qing.
Sun introduced as follows:
The sun is the central celestial body of the solar system, accounting for 99.86% of the total mass of the solar system. The eight planets, asteroids, meteors, comets, exoneptune objects and interstellar dust in the solar system all revolve around the sun, and the sun revolves around the center of the Milky Way.
The sun is a star located in the center of the solar system, and it is almost an ideal sphere where hot plasma and magnetic field are intertwined. The diameter of the sun is about1392000 (1.392×10? ) kilometers, equivalent to 109 times the diameter of the earth; The volume is about 6.5438+0.3 million times that of the earth; Its mass is about 2× 10 kg (330000 times that of the earth).
From the chemical composition, about three-quarters of the mass of the sun is hydrogen, and the rest is almost helium, including oxygen, carbon, neon, iron and other heavy elements with mass less than 2%. Nuclear fusion is used to release light and heat into space.
The land is introduced as follows:
Land is an important material foundation for human survival and development, and an important guarantee for supporting high-quality development and realizing China's modernization. Land includes the atmosphere, soil and basic geology, hydrology, plants and animals above and below the surface in a specific area of the earth, and also includes various results of past and present human activities in this area.
The important influence of human beings on land use. Geologists in China generally believe that land is a comprehensive concept of physical geography. It is considered that land is a natural complex in a certain area of the surface, including geology, landform, climate, hydrology, soil, vegetation and other natural elements.