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- 21（自然数之一）_百度百科
21（二十一）是20与22之间的自然数。 是一个奇数、合数、半素数。 在多部词典中，“21”这一数字的使用频率均位居前列，具体而言，在《现代汉语词典》中列第二十位，在《数字合称词海》中居第二十三位，在《辞海》中排第二十八位，而在《辞源》中则名列第三十二位。 经综合评估后得出，“21”在影响中国人生活的36个重要数字中，位列第二十六。
- 21 (number) - Wikipedia
21 (twenty-one) is the natural number following 20 and preceding 22 The current century is the 21st century AD, under the Gregorian calendar Twenty-one is the fifth distinct semiprime, [1] and the second of the form where is a higher prime [2] It is a repdigit in quaternary (111 4)
- The *#21# and ##21# Codes: Meanings and Uses Explained in this Easy . . .
What do the *#21# and ##21# codes mean? Does dialing them on your Samsung phone or other Android phone tell you whether your cell phone has been tapped?
- 21 (2008 film) - Wikipedia
21 is a 2008 American heist drama film directed by Robert Luketic and distributed by Sony Pictures Releasing The film is inspired by the story of the MIT Blackjack Team as told in Bringing Down the House, the best-selling 2003 book by Ben Mezrich
- Code: *#21# Meaning and Explanation Of The Hoax - SimplyMac
*#21# is a specific Unstructured Supplementary Service Data (USSD) code that, when entered, allows you to check if call forwarding is enabled on your mobile device Think of it as a flashlight, letting you peek into a specific setting on your phone Every few years the hoax surrounding code: *#21# goes viral
- 21 (2008) - IMDb
21: Directed by Robert Luketic With Jim Sturgess, Kevin Spacey, Kate Bosworth, Aaron Yoo Inspired by real events and people, 21 is about six MIT students who become trained to be experts in card counting in blackjack and subsequently took Vegas casinos for millions in winnings
- 21 trailer - YouTube
Release Date: 28 March 2008 (United States)Inspired by the true story of MIT students who mastered the art of card counting and took Vegas casinos for millio
- 科普 | “第21”的英文到底是21st还是21th？_nd_错误_网友
说21th 是 one-and-twentieth的一种古体或方言，21st是其现代版本。 就像其他回答中一样，几乎没有现代英语母语人士会注意到这种古体，但这种写法在1700年前还是常用的。 首先要明确一点，这是一个现代文的语境，这个英文也是博物馆某个展厅的介绍，作为针对现代大众的科普介绍，博物馆不可能装这个 b，用300多年前的古语 只有一种可能，它打错了。 国外一个语言学网站也给出了明确的答案，在现代语境中，21th 就是错误的，21st 才是正解，大家散了吧，该干嘛干嘛。 科普 | 为什么“人民大学”译为Renmin University，而不是People’s University？ 平台声明：该文观点仅代表作者本人，搜狐号系信息发布平台，搜狐仅提供信息存储空间服务。
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