天气预报15天查询> 其他> 垂线段最短是真命题还是假命题

垂线段最短是真命题还是假命题

更新时间: 2020-09-28 00:00:00     

直线外一点与直线上各点连接的所有线段中,垂线段最短。简称“垂线段最短”。垂线段定义是,直线外一点到已知直线的垂直距离,垂线段的属于数学理论之中的名词。直线外任意一点到这条直线的垂线段的长度,叫做这点倒这条直线的距离。

关键词: 垂线 命题 还是

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-134338/ | 耗时:0.6497 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=134338 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=134338 LIMIT 0,1
select * from tbl_Articles_sphinx where id=134338 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1093857,1093839,1074562,1076267,1081422,1076824,1053224,1052073,1076764,1076025,1080747,1068016,1115813,1061328,1084307,1082928,1056858,1128047,1066438,1063981,1081757,1042959,1062062,1073076,1079862,1076059,1064323,1081297,1052105,1054460) ORDER BY field (ArticleID,1093857,1093839,1074562,1076267,1081422,1076824,1053224,1052073,1076764,1076025,1080747,1068016,1115813,1061328,1084307,1082928,1056858,1128047,1066438,1063981,1081757,1042959,1062062,1073076,1079862,1076059,1064323,1081297,1052105,1054460)