已知矩形两个邻边的长分别是1和3,则该矩形的两条对角线所夹的锐角是______. 发布时间:2017-05-05 23:17 │ 来源:www.tikuol.com 题型:填空题 问题: 已知矩形两个邻边的长分别是1和3,则该矩形的两条对角线所夹的锐角是______.
题型:填空题 Let's learn to use the problem we are facing()a stepping-stone to future success.A. toB. forC. asD. by 查看答案