Four reciprocal laws are all applicable to ( )
A. The rigid body
B. Linearly elastic system
C. Deformable body
D. Nonlinear system
查看答案
The method of graph multiplication could be applied to any straight member structure.
Displacement method establishes equations according to on deformation conditions.( )
Statically determinate structures must have internal forces if they have deformation.
Statically determinate structures must have deformation if there is displacement.