Which of the following statements is true about the inclined lines（）
A. Only parallel to one projection plane
B. Only inclined to two projection planes
C. Perpendicular to one projection plane
D. Inclined to one projection plane
查看答案
What orientations can be shown on projection plane V（）
A. Right and left
B. Up and down
C. Front and rear
D. None
What kind of line types are used to represent visible outlines（）
A. Continuous thick line
B. Continuous thin line
C. Thin hidden lines
D. Center line
Which of the following statements is true about oblique lines（）
A. Inclined to three projection planes
B. Parallel to two projection planes
C. Only inclined to two projection planes
D. Inclined to one projection plane
What orientations can be shown on projection plane W（）
A. Up and down
B. Front and rear
C. Left and right
D. None
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