What drawing is obtained based on orthographic projection method（）
A. Three principal views
B. Isometric drawing
Cartographical drawin
D. Perspective drawing
E. Cabinet drawing
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What drawing is produced based on parallel projection method（）
A. Multi-view projection
B. Isometric drawing
Cabinet drawing
D. Cartographical projection
E. Perspective projection
The space point is represented by（）
A. Capital letter
B. Lowercase letter
C. Small letter
D. Number
What kind of line type can be used to show projection lines（）
A. Thin continuous line
B. Thick continuous line
C. Thin hidden line
D. Thin centerline
What kind of engineering drawing has the best visuality（）
A. Perspective projection
B. Multi-view projection
Cartographical projection
D. None
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