【判断题】混凝土预压前发生的预应力损失称为第一批预应力损失组合。 [单选题] *
【判断题】混凝土预压前发生的预应力损失称为第一批预应力损失组合。
【判断题】( ) 用连杆检验仪检验连杆变形时,若三点规的 3 个测点都与检验平板接触,则连杆发生弯曲变形。
【简答题】A.His telephone went out of order. B.The buyers had to leave soon. C.He began to work at 8 a.m. D.He had made an appointment with her for 8 a.m.