How many relationships between two lines？
A.3
B.4
C.1
D.2
正確答案：3；4
題目：How many relationships between two lines？
關鍵字：智慧樹
相關試題
1.If two projections of two lines are parallel， then the two lines are parallel in space。
2.The true length projection of a line appears in a projection plane that is parallel to the line。
3.Two lines are parallel in space provided that their respective projections on two projection planes are parallel.
4.If a line is parallel to any line in a plane， the line is parallel to the plane.
5.What type of intersection line can you get， when a sphere cut by a plane？
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