天气预报 > 教育 > 自然数的定义
自然数的定义
更新时间: 2021-11-24 16:01:06  

自然数是指用以计量事物的件数或表示事物次序的数。即用数码0,1,2,3,4,所表示的数。自然数由0开始,一个接一个,组成一个无穷的集体。自然数有有序性,无限性。分为偶数和奇数,合数和质数等。

关键词: 自然数 定义

自然数的定义相关经验

天气预报

最新推荐

页面:/news/view-101139/ | 耗时:0.2090 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=101139 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=101139 LIMIT 0,1
select * from tbl_Articles_sphinx where id=101139 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1115339,80086,81196,364220,374030,100747,371795,1122400,369599,1090378,769174,2507224,1156001,86169,367443,359354,366243,1103123,362305,100634,367983,1117834,368379,365780,364304,100382,1113343,370859,1083301,369737) ORDER BY field (ArticleID,1115339,80086,81196,364220,374030,100747,371795,1122400,369599,1090378,769174,2507224,1156001,86169,367443,359354,366243,1103123,362305,100634,367983,1117834,368379,365780,364304,100382,1113343,370859,1083301,369737)