题目内容

在一个三投影面体系中,两投影面的交线称为投影轴,H面与V面的交线为OX轴,H面与W面的交线为OY轴,V面与W面的交线为OZ轴,三条投影轴两两互相垂直并汇交于原点O。

A. 对
B. 错

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