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2 天前 · Amyotrophic lateral sclerosis ( ALS ), also known as motor neurone disease ( MND) or Lou Gehrig's disease in the United States, is a rare but terminal neurodegenerative disorder that results in the progressive loss of both upper and lower motor neurons that normally control voluntary muscle contraction. [3] ALS is the most common form of the ...
21 小時前 · Probability theory. In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is. The parameter is the mean or expectation of the distribution (and also its median and mode ), while ...
21 小時前 · Hartsfield–Jackson Atlanta International Airport ( IATA: ATL, ICAO: KATL, FAA LID: ATL) is the primary international airport serving Atlanta and its surrounding metropolitan area, in the U.S. state of Georgia. The airport is located 10 miles (16 km; 8.7 nmi) south of the Downtown Atlanta district.
2 天前 · Gross domestic product (GDP) is the market value of all final goods and services from a nation in a given year. [2] . Countries are sorted by nominal GDP estimates from financial and statistical institutions, which are calculated at market or government official exchange rates.
2 天前 · Dunkirk is a 2017 epic historical war thriller film written, directed and co-produced by Christopher Nolan that depicts the Dunkirk evacuation of World War II from the perspectives of the land, sea and air.
2 天前 · Carol Susan Jane Danvers is a character appearing in American comic books published by Marvel Comics. Created by writer Roy Thomas and artist Gene Colan, the character first appeared as an officer in the United States Air Force and a colleague of the Kree superhero Mar-Vell in Marvel Super-Heroes #13 (March 1968).
1 天前 · History is an academic discipline which uses a narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. [6] [7] Historians debate which narrative best explains an event, as well as the significance of different causes and effects.
