当投射线互相平行，并与投影面垂直时，物体在投影面上的投影叫（）。 -题库考试答案搜索网

当投射线互相平行，并与投影面垂直时，物体在投影面上的投影叫（）。

单选题

2021-07-17 23:54

A、斜投影
B、正投影
C、中心投影
D、平行投影

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正确答案

B

试题解析

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