若三角形的三个内角之比为1:2:3,则它们所对的边长之比为( ) A.1:2:3B 发布时间:2017-04-24 23:25 │ 来源:www.tikuol.com 题型:选择题 问题: 若三角形的三个内角之比为1:2:3,则它们所对的边长之比为( )A.1:2:3B.1:3:2C.1:4:9D.1:2:3
题型:选择题 —What color is your bag?—______.[ ]A. It's an orange B. It's the orangeC. It's orange D. It's a orange 查看答案