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3 天前 · e. The Oxford–AstraZeneca COVID‑19 vaccine, sold under the brand names Covishield [31] and Vaxzevria [1] [32] among others, is a viral vector vaccine for the prevention of COVID-19. It was developed in the United Kingdom by Oxford University and British-Swedish company AstraZeneca, [33] [34] [35] using as a vector the modified chimpanzee ...
2 天前 · Classic explanations include yellow fever, bubonic plague, influenza, smallpox, chickenpox, typhus, and syndemic infection of hepatitis B and hepatitis D. 1,143,000–3,429,000 (estimated 30–90% of population) [68] [69] 1629–1631 Italian plague (part of the second plague pandemic ) 1629–1631. Italy. Bubonic plague.
1 天前 · Map of ongoing armed conflicts (number of combat-related deaths in current or previous year): Major wars (10,000 or more) Wars (1,000–9,999) Minor conflicts (100–999) Skirmishes and clashes (1–99) The following is a list of ongoing armed conflicts that are taking place around the world.
2 天前 · Japanese (日本語, Nihongo, [ɲihoŋɡo] ⓘ) is the principal language of the Japonic language family spoken by the Japanese people. It has around 120 million speakers, primarily in Japan, the only country where it is the national language, and within the Japanese diaspora worldwide. The Japonic family also includes the Ryukyuan languages ...
1 天前 · What links here Related changes Upload file Special pages Permanent link Page information Cite this page Get shortened URL Download QR code Statistical subregions as defined by the United Nations Statistics Division This is a list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2022 revision of World ...
1 天前 · The term sustainability is derived from the Latin word sustinere. "To sustain" can mean to maintain, support, uphold, or endure. So sustainability is the ability to continue over a long period of time. In the past, sustainability referred to environmental sustainability. It meant using natural resources so that people in the future could continue to rely on them in the long term. The concept ...
2024年5月22日 · List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [1]
