题目内容
（请给出正确答案）
[判断题]
If two projections of two lines are parallel, then the two lines are parallel in space（）
如搜索结果不匹配，请 联系老师 获取答案
更多“If two projections of two line…”相关的问题
第1题
Two lines are parallel in space provided that their respective projections on two projection planes are parallel（）
第2题
投影面平行线的投影特征是一斜线两直线。 The projections of line parallel a projection plane are one oblique line and two straight lines.
第3题
Tensile stress is a result of two forces acting in ______.A.opposite directions on the sam
Tensile stress is a result of two forces acting in ______.
A.opposite directions on the same line，tending to pull the material apart
B.opposite directions on the same line，tending to compress the object
C.opposite directions along parallel lines
D.the same direction along parallel lines
第4题
Points [图] and [图] are any two arbitrary points ...
Points
and
are any two arbitrary points in a plane figure. The projections of the velocities of these two points on line
are
and
, respectively. The projections of the accelerations of these two points on line
are
and
, respectively. Then we can get
and
.
第5题
There are two parallel school systems in Britain for primary and secondary education.（
There are two parallel school systems in Britain for primary and secondary education.()
第7题
When we（)two things, we show how they are similar; when we（)two things, we show how t
When we()two things, we show how they are similar; when we()two things, we show how they are different.
A.contrast, parallel
B.contrast, compare
C.compare, contrast
D.compare, parallel
第8题
【多选题】There are two adjacent frames, what of the geometrical elements they may stand for？
A、Two parallel planes
B、A plane and a circular surface
C、Two circular surfaces
D、Two intersecting planes
第9题
Which statement about two lines spliced together is TRUE ________．A.Splicing is used to in
Which statement about two lines spliced together is TRUE ________．
A.Splicing is used to increase the circumference of each line
B.Splicing two lines together is stronger than knotting two lines together
C.Splicing is used to increase the overall strength of the line
D.Splicing is used to prevent rotting of the lines bitter end
第10题
What does the conceit of a drafting compass suggest in lines 25－28？A.A spiritual union o
What does the conceit of a drafting compass suggest in lines 25-28？
A.A spiritual union of the two lovers.
B.A physical union of the two lovers.
C.A sweet memory of the two lovers.
D.A happy moment of the two lovers.
热门考试
全部 >
