正投影有哪些特性（）_精华吧

正投影有哪些特性（）

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正投影有哪些特性（）

A.平行性

B.定比性

C.可量性

D.全等性；积聚性；类似性

正确答案：全等性；积聚性；类似性

Tag：画法几何及土木工程制图正投影特性时间：2022-02-17 20:46:18

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