外国的电脑进百度知道太慢,之前卡住了……现在题目奉上……谢谢哈
Please describe a real-life example of three lines in space that do not intersect each other and no two of which lie in the same plane.
急啊……麻烦各位帮帮忙,给一点Idea就可以了!一定会有10分奖励的
外国的电脑进百度知道太慢,之前卡住了……现在题目奉上……谢谢哈
Please describe a real-life example of three lines in space that do not intersect each other and no two of which lie in the same plane.
题目应该是翻译成:空间有3条直线互不相交,并且每2条直线都不在一个平面内,请举例说明。
解:一个正方体或长方体中,正面上边、右面下边、左面后边的3条线两两垂直且不相交。