• 2022-06-01
    In the following conclusions, ( ) is wrong.
    A: If the object displaces, it must deform at the same time.
    B: If there is no displacement at each point of the object, there must be no deformation.
    C: If the object deforms, there are always some points in the object to displace.
    D: The magnitude of the displacement depends on the deformation and constraint of the object.