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1. |
Which of the following is correct for the frames in 2D and machines in 3D? |
A. | The application of the conditions of the equilibrium of the body is valid only in the 2D |
B. | The application of the conditions of the equilibrium of the body is valid only in the 3D |
C. | The application of the conditions of the equilibrium of the body is valid only in the 1D |
D. | The application of the conditions of the equilibrium of the body is valid throughout |
Answer» E. | |