【判断题】在梁的某截面上弯矩图的斜率为零,则该截面上剪力为零.
【单选题】双杆作业时,为减小舷内吊杆保险稳索的张力,其下端系结点应尽量( )
【单选题】I’ve decided to move to the countryside, for I’ve had _____ of the noises here.
【简答题】在平面直角坐标系中,已知点A(2,1),B(2,0),C(1,-1),请在图上画出△ABC,并画出与△ABC关于原点O对称的图形.
【单选题】PLC的RS485专用通讯模块的通讯距离是多少( )m。
【判断题】在梁的某截面上弯矩图的斜率为零,则该截面上剪力为零。
【单选题】The climate in London doesn’t with me, and therefore, I’ve decided to move to New York.