Contour lines are thin curved lines that appear to wrap around certain areas in the topographic maps. True or false?
举一反三
- Which of the following lines are used as dimension lines， extension lines， leader lines， construction lines， section lines and projection lines？（ ） A: Thin phantom lines B: Thin solid lines C: Thin center lines D: Wavy lines
- The contour lines on the plane are the lines parallel to the H-plane in the plane.
- Basically, lines can be used in three ways in drawing: to be used as contour lines, hatching lines, and cross-hatching lines.
- 4) The life is shown in curved lines of blue and green on the picture.
- Membranous epithelium covers and lines all the external surfaces of the human body. A: TRUE B: FALSE