预应力结构模板的拆模，后张法的侧模应在预应力张拉后拆除，底模应在结构构件建立预应力前拆除；有孔道灌浆的在灌浆强度不低于C15级时拆除。
参考答案：错
No one ______ this building without the permission of the police .
A is leaving B is to leave C has left D will be leaving
运动物体的动能大小与物体的______和______有关，物体______越大，______越大，它的动能越大．
