纵向位移阻力系数
参考答案：
梁轨间在纵向的相互作用力通过弹簧垫层传递，弹簧垫层的水平弹性系数称为梁轨间纵向位移阻力系数。
She told her neighbour that he () the well known scientist if he had attended the lecture.
A．could meet
B．might have met
C．might meet
D．would meet
《中华人民共和国安全生产法》所说的“负有安全生产监督管理职责的部门”就是指各级安全生产监督管理部门。
