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1 天前 · Cholesterol is the principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils.[3][4] Cholesterol is biosynthesized by all animal cells and is an essential structural component of animal cell membranes. In vertebrates, hepatic cells typically produce the greatest ...
2 天前 · Marxism is a political philosophy and method of socioeconomic analysis. It uses a materialist interpretation of historical development, better known as "historical materialism", to understand class relations and social conflict. It also uses a dialectical perspective to view social transformation. Marxism originates from the works of 19th ...
2 天前 · Joseph Vissarionovich Stalin [f] (born Dzhugashvili; [g] 18 December [ O.S. 6 December] 1878 – 5 March 1953) was a Soviet politician and revolutionary who was the longest-serving leader of the Soviet Union from 1924 until his death in 1953.
1 天前 · The UEFA Champions League (previously known as the European Cup, abbreviated as UCL, or sometimes, UEFA CL) is an annual club association football competition organised by the Union of European Football Associations (UEFA) and contested by top-division European clubs, deciding the competition winners through a round robin group stage to qualify ...
2 天前 · Scarlett Ingrid Johansson ( / dʒoʊˈhænsən / [1] born November 22, 1984) is an American actress and singer. The world's highest-paid actress in 2018 and 2019, she has been featured multiple times on the Forbes Celebrity 100 list. Time named her one of the 100 most influential people in the world in 2021.
1 天前 · Nelson Rolihlahla Mandela ( / mænˈdɛlə / man-DEH-lə; [1] Xhosa: [xolíɬaɬa mandɛ̂ːla]; born Rolihlahla Mandela; 18 July 1918 – 5 December 2013) was a South African anti-apartheid activist, politician, and statesman who served as the first president of South Africa from 1994 to 1999.
1 天前 · The tiger ( Panthera tigris) is the largest living cat species and a member of the genus Panthera native to Asia. It has a powerful, muscular body with a large head and paws, a long tail, and orange fur with black, mostly vertical stripes.
