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5 天前 · cia .gov. The Central Intelligence Agency ( CIA) / ˌsiː.aɪˈeɪ /, known informally as the Agency [6] and historically as the Company, [7] is a civilian foreign intelligence service of the federal government of the United States tasked with gathering, processing, and analyzing national security information from around the world, primarily ...
5 天前 · Visna-maedi virus. The human immunodeficiency viruses ( HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), [1] [2] a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. [3]
1 天前 · Marginal seas. v. t. e. The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Australia in the west and the Americas in the east.
1 天前 · where denotes the least upper bound (or supremum) of the set. Lyapunov CLT In this variant of the central limit theorem the random variables have to be independent, but not necessarily identically distributed. The theorem also requires that random variables | | have moments of some order (+), and that the rate of growth of these moments is limited by the Lyapunov condition given below.
1 天前 · David Lynch Foundation. v. t. e. David Keith Lynch (born January 20, 1946) is an American filmmaker, visual artist, and musician. Lynch has received critical acclaim for his films, which are often distinguished by their surrealist, dreamlike qualities. He has received numerous accolades, including the Golden Lion in 2006 and an Honorary Academy ...
6 天前 · In mathematics. Six is the smallest positive integer which is neither a square number nor a prime number. It is the second smallest composite number after four, equal to the sum and the product of its three proper divisors ( 1, 2 and 3 ). [1] As such, 6 is the only number that is both the sum and product of three consecutive positive numbers.
13 小時前 · James Francis Cameron CC (born August 16, 1954) is a Canadian filmmaker. He is a major figure in the post-New Hollywood era.He often uses novel technologies with a classical filmmaking style. He first gained recognition for writing and directing The Terminator (1984) and found further success with Aliens (1986), The Abyss (1989), Terminator 2: Judgment Day (1991), True Lies (1994), as well as ...
