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透视的特点包括A.
立方体的与画面构成两种关系，垂直边、（）边。
B.
两组成角变线，消失方向不一，形成左右两个消失点处于心点两侧。
C.
两个消失点都在视，视以上的立方体成角边线向下消失，视以上的立方体成角边线向上消失。
D.
立方体的与画面构成三种关系，水平边与垂直边、直角边。前两种为，不消失，后一种是平行透视中唯一的变线。
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