因为钢轨被视为支撑在连续弹性基础上的无限长梁,而梁抵抗挠曲的最佳断面形状为() 发布时间:2017-07-16 02:59 │ 来源:www.tikuol.com 题型:填空题 问题: 因为钢轨被视为支撑在连续弹性基础上的无限长梁,而梁抵抗挠曲的最佳断面形状为()
题型:填空题 I think Mrs. Liu ______ to help us if she is not too busy tomorrow. [ ]A. come B. came C. will come D. comes 查看答案