正等测的轴向伸缩系数近似值是多少？Which choice is the factors of isometric drawing ？

What two types of projections give a pictorial view of the object without convergence? A: orthographic and perspective B: oblique and axonometric C: perspective and oblique D: isometric and orthographic

In an isometric sketch of a cube: A: the frontal face appears in its true shape B: the receding axes are at 45 degrees to the horizontal C: all faces are equally distorted D: only the depth distances must be reduced