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【简答题】
采薇采薇,( )。( ),心亦忧止。
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反馈参考答案：
举一反三
【简答题】投射(projection)
【单选题】Which projection is the true length for a frontal line?
A.
H projection
B.
W projection
C.
V projection
D.
no projection
【多选题】What are the projection properties of horizontal line?
A.
The horizontal projection gives the true length.
B.
The fronal projection is parallel to axis OX.
C.
The profile projection is parallel to axis OZ.
【单选题】关于测绘成果汇交,以下说法错误的为( )。
A.
测绘成果汇交的接受主体为国务院测绘行政主管部门
B.
测绘成果汇交的特征有:法定性、无偿性、完整性、时效性
C.
测绘成果目录或者副本实行无偿汇交的制度
D.
测绘单位应当自测绘项目验收完成之日起三个月内,向测绘行政主管部门汇交成果副本或者目录
【多选题】What are the projection properties of frontal line?
A.
The frontal projection gives the true size.
B.
The horizontal projection is parallel to axis OX.
C.
The profile projection is parallel to axis OZ.
D.
The angle between the frontal projection and axis OX equals the angle of the spacial line and the horizontal plane of projection.
【单选题】The distance between horizontal projection a and projection axis OX is equal to the distance from the point A to the projection plane: (Single option:10 points)
A.
Projection plane W
B.
Projection plane H
C.
Projection plane V
D.
None
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