- 9（自然数之一）_百度百科
9，是8与10之间的自然数，是一个正整数，是奇数和合数。 9是一个阿拉伯数字，9是3的二次方，也可以说是3的平方，它是平方数，也是一个有理数。
- 9 - 维基百科，自由的百科全书
中国南方一些地区 结婚 习俗，迎娶 新娘 时， 新郎 會包一封一般是9999元（或更多「9」）的 红包 给新娘的家人及亲朋好友，以表示长久之意。
- 9 (number) - New World Encyclopedia
ISO 9 is the standard of the International Organization for Standardization for the transliteration of Cyrillic characters into Latin characters In the Rich Text Format specification, 9 is the language code for the English language
- 9 - Wiktionary, the free dictionary
9 (plural 9s) (sports, snowboarding, skiing) Clipping of 900 (“900° spin”)
- Number 9 facts
The 9 × 19 mm Parabellum (abbreviated as 9 mm), is a cartridge for pistols, submachine guns and carbines designed by Georg Luger and introduced in 1902, for his semi-automatic Parabellum pistol
- 9 in Chinese: Meaning, Pronunciation, and Cultural Symbolism
9 in Chinese means 九 jiǔ — a number associated with longevity, completeness, and good fortune Learn how to pronounce it, write it, and use it in daily Mandarin
- 9 - definition of 9 by The Free Dictionary
Define 9 9 synonyms, 9 pronunciation, 9 translation, English dictionary definition of 9 Noun 1 9 - the cardinal number that is the sum of eight and one ennead, IX, Nina from Carolina, nine, niner digit, figure - one of the elements that
- Number 9 - Facts about the integer - Numbermatics
Your guide to the number 9, an odd composite number composed of a single prime multiplied by itself Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun
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