对应下图表示的投影面垂直面的三面投影图，下列描述正确的有（    ）、（    ）。

A、<span style="font-size:16px;font-family: &#39;Times New Roman&#39;,&#39;serif&#39;">ABCD</span><span style="font-size:16px;font-family: 宋体">为侧垂面</span>

B、<span style="font-size:16px;font-family: &#39;Times New Roman&#39;,&#39;serif&#39;">abcd</span><span style="font-size:16px;font-family: 宋体">为平面</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">ABCD</span><span style="font-size:16px;font-family: 宋体">的类似形</span>

C、<span style="font-size:16px;font-family:宋体">θ为平面</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">ABCD</span><span style="font-size:16px;font-family: 宋体">对</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">H</span><span style="font-size:16px;font-family: 宋体">面的倾角</span>

D、<span style="font-size:16px;font-family:宋体">ρ为平面</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">ABCD</span><span style="font-size:16px;font-family: 宋体">对</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">V</span><span style="font-size:16px;font-family: 宋体">面的倾角</span>